diff --git a/mk-poetry-dep.nix b/mk-poetry-dep.nix
index 256e2d9..7ce7e67 100644
--- a/mk-poetry-dep.nix
+++ b/mk-poetry-dep.nix
@@ -16,102 +16,112 @@
 , pwd
 , supportedExtensions ? lib.importJSON ./extensions.json
 , ...
-}: let
+}:
 
-  inherit (poetryLib) isCompatible getManyLinuxDeps fetchFromPypi;
+pythonPackages.callPackage (
+  { preferWheel ? false
+  }:
 
-  inherit (import ./pep425.nix {
-    inherit lib python;
-    inherit (pkgs) stdenv;
-  }) selectWheel
-    ;
-
-  fileCandidates = let
-    supportedRegex = ("^.*?(" + builtins.concatStringsSep "|" supportedExtensions + ")");
-    matchesVersion = fname: builtins.match ("^.*" + builtins.replaceStrings [ "." ] [ "\\." ] version + ".*$") fname != null;
-    hasSupportedExtension = fname: builtins.match supportedRegex fname != null;
-    isCompatibleEgg = fname: ! lib.strings.hasSuffix ".egg" fname || lib.strings.hasSuffix "py${python.pythonVersion}.egg" fname;
-  in
-    builtins.filter (f: matchesVersion f.file && hasSupportedExtension f.file && isCompatibleEgg f.file) files;
-
-  toPath = s: pwd + "/${s}";
-
-  isSource = source != null;
-  isGit = isSource && source.type == "git";
-  isLocal = isSource && source.type == "directory";
-
-  localDepPath = toPath source.url;
-  pyProject = poetryLib.readTOML (localDepPath + "/pyproject.toml");
-
-  buildSystemPkgs = poetryLib.getBuildSystemPkgs {
-    inherit pythonPackages pyProject;
-  };
-
-  fileInfo = let
-    isBdist = f: lib.strings.hasSuffix "whl" f.file;
-    isSdist = f: ! isBdist f && ! isEgg f;
-    isEgg = f: lib.strings.hasSuffix ".egg" f.file;
-
-    binaryDist = selectWheel fileCandidates;
-    sourceDist = builtins.filter isSdist fileCandidates;
-    eggs = builtins.filter isEgg fileCandidates;
-
-    lockFileEntry = builtins.head (sourceDist ++ binaryDist ++ eggs);
-
-    _isEgg = isEgg lockFileEntry;
-
-  in
-    rec {
-      inherit (lockFileEntry) file hash;
-      name = file;
-      format =
-        if _isEgg then "egg"
-        else if lib.strings.hasSuffix ".whl" name then "wheel"
-        else "setuptools";
-      kind =
-        if _isEgg then python.pythonVersion
-        else if format == "setuptools" then "source"
-        else (builtins.elemAt (lib.strings.splitString "-" name) 2);
-    };
-
-  baseBuildInputs = lib.optional (name != "setuptools_scm" && name != "setuptools-scm") pythonPackages.setuptools_scm;
-
-in
-
-buildPythonPackage {
-  pname = name;
-  version = version;
-
-  doCheck = false; # We never get development deps
-  dontStrip = true;
-  format = if isLocal then "pyproject" else if isGit then "setuptools" else fileInfo.format;
-
-  nativeBuildInputs = if (!isSource && (getManyLinuxDeps fileInfo.name).str != null) then [ autoPatchelfHook ] else [];
-  buildInputs = baseBuildInputs ++ (if !isSource then (getManyLinuxDeps fileInfo.name).pkg else []);
-
-  propagatedBuildInputs =
     let
-      # Some dependencies like django gets the attribute name django
-      # but dependencies try to access Django
-      deps = builtins.map (d: lib.toLower d) (builtins.attrNames dependencies);
+
+      inherit (poetryLib) isCompatible getManyLinuxDeps fetchFromPypi;
+
+      inherit (import ./pep425.nix {
+        inherit lib python;
+        inherit (pkgs) stdenv;
+      }) selectWheel
+        ;
+
+      fileCandidates = let
+        supportedRegex = ("^.*?(" + builtins.concatStringsSep "|" supportedExtensions + ")");
+        matchesVersion = fname: builtins.match ("^.*" + builtins.replaceStrings [ "." ] [ "\\." ] version + ".*$") fname != null;
+        hasSupportedExtension = fname: builtins.match supportedRegex fname != null;
+        isCompatibleEgg = fname: ! lib.strings.hasSuffix ".egg" fname || lib.strings.hasSuffix "py${python.pythonVersion}.egg" fname;
+      in
+        builtins.filter (f: matchesVersion f.file && hasSupportedExtension f.file && isCompatibleEgg f.file) files;
+
+      toPath = s: pwd + "/${s}";
+
+      isSource = source != null;
+      isGit = isSource && source.type == "git";
+      isLocal = isSource && source.type == "directory";
+
+      localDepPath = toPath source.url;
+      pyProject = poetryLib.readTOML (localDepPath + "/pyproject.toml");
+
+      buildSystemPkgs = poetryLib.getBuildSystemPkgs {
+        inherit pythonPackages pyProject;
+      };
+
+      fileInfo = let
+        isBdist = f: lib.strings.hasSuffix "whl" f.file;
+        isSdist = f: ! isBdist f && ! isEgg f;
+        isEgg = f: lib.strings.hasSuffix ".egg" f.file;
+
+        binaryDist = selectWheel fileCandidates;
+        sourceDist = builtins.filter isSdist fileCandidates;
+        eggs = builtins.filter isEgg fileCandidates;
+
+        entries = (if preferWheel then binaryDist ++ sourceDist else sourceDist ++ binaryDist);
+
+        lockFileEntry = builtins.head entries;
+
+        _isEgg = isEgg lockFileEntry;
+
+      in
+        rec {
+          inherit (lockFileEntry) file hash;
+          name = file;
+          format =
+            if _isEgg then "egg"
+            else if lib.strings.hasSuffix ".whl" name then "wheel"
+            else "setuptools";
+          kind =
+            if _isEgg then python.pythonVersion
+            else if format == "setuptools" then "source"
+            else (builtins.elemAt (lib.strings.splitString "-" name) 2);
+        };
+
+      baseBuildInputs = lib.optional (name != "setuptools_scm" && name != "setuptools-scm") pythonPackages.setuptools_scm;
+
     in
-      (builtins.map (n: pythonPackages.${n}) deps) ++ (if isLocal then buildSystemPkgs else []);
 
-  meta = {
-    broken = ! isCompatible python.version python-versions;
-    license = [];
-  };
+      buildPythonPackage {
+        pname = name;
+        version = version;
 
-  # We need to retrieve kind from the interpreter and the filename of the package
-  # Interpreters should declare what wheel types they're compatible with (python type + ABI)
-  # Here we can then choose a file based on that info.
-  src = if isGit then (
-    builtins.fetchGit {
-      inherit (source) url;
-      rev = source.reference;
-    }
-  ) else if isLocal then (localDepPath) else fetchFromPypi {
-    pname = name;
-    inherit (fileInfo) file hash kind;
-  };
-}
+        doCheck = false; # We never get development deps
+        dontStrip = true;
+        format = if isLocal then "pyproject" else if isGit then "setuptools" else fileInfo.format;
+
+        nativeBuildInputs = if (!isSource && (getManyLinuxDeps fileInfo.name).str != null) then [ autoPatchelfHook ] else [];
+        buildInputs = baseBuildInputs ++ (if !isSource then (getManyLinuxDeps fileInfo.name).pkg else []);
+
+        propagatedBuildInputs =
+          let
+            # Some dependencies like django gets the attribute name django
+            # but dependencies try to access Django
+            deps = builtins.map (d: lib.toLower d) (builtins.attrNames dependencies);
+          in
+            (builtins.map (n: pythonPackages.${n}) deps) ++ (if isLocal then buildSystemPkgs else []);
+
+        meta = {
+          broken = ! isCompatible python.version python-versions;
+          license = [];
+        };
+
+        # We need to retrieve kind from the interpreter and the filename of the package
+        # Interpreters should declare what wheel types they're compatible with (python type + ABI)
+        # Here we can then choose a file based on that info.
+        src = if isGit then (
+          builtins.fetchGit {
+            inherit (source) url;
+            rev = source.reference;
+          }
+        ) else if isLocal then (localDepPath) else fetchFromPypi {
+          pname = name;
+          inherit (fileInfo) file hash kind;
+        };
+      }
+
+) {}
diff --git a/overrides.nix b/overrides.nix
index 207841f..849040c 100644
--- a/overrides.nix
+++ b/overrides.nix
@@ -154,6 +154,11 @@ in
     }
   );
 
+  # Calls Cargo at build time for source builds and is really tricky to package
+  maturin = super.maturin.override {
+    preferWheel = true;
+  };
+
   mccabe = super.mccabe.overrideAttrs (
     old: {
       postPatch = ''
diff --git a/tests/default.nix b/tests/default.nix
index a952914..5f63a01 100644
--- a/tests/default.nix
+++ b/tests/default.nix
@@ -21,6 +21,7 @@ in
   cli = poetry2nix;
   path-deps = pkgs.callPackage ./path-deps { inherit poetry2nix; };
   operators = pkgs.callPackage ./operators { inherit poetry2nix; };
+  preferWheel = pkgs.callPackage ./prefer-wheel { inherit poetry2nix; };
 
   # Egg support not yet in channel, uncomment when channel progressed
   # eggs = pkgs.callPackage ./eggs { inherit poetry2nix; };
diff --git a/tests/prefer-wheel/default.nix b/tests/prefer-wheel/default.nix
new file mode 100644
index 0000000..0809511
--- /dev/null
+++ b/tests/prefer-wheel/default.nix
@@ -0,0 +1,20 @@
+{ lib, poetry2nix, python3 }:
+
+poetry2nix.mkPoetryApplication {
+  python = python3;
+  pyproject = ./pyproject.toml;
+  poetrylock = ./poetry.lock;
+  src = lib.cleanSource ./.;
+  overrides = [
+    poetry2nix.defaultPoetryOverrides
+    # This is also in overrides.nix but repeated for completeness
+    (
+      self: super: {
+        maturin = super.maturin.override {
+          preferWheel = true;
+        };
+      }
+    )
+
+  ];
+}
diff --git a/tests/prefer-wheel/poetry.lock b/tests/prefer-wheel/poetry.lock
new file mode 100644
index 0000000..605cd75
--- /dev/null
+++ b/tests/prefer-wheel/poetry.lock
@@ -0,0 +1,37 @@
+[[package]]
+category = "main"
+description = "Build and publish crates with pyo3, rust-cpython and cffi bindings as well as rust binaries as python packages"
+name = "maturin"
+optional = false
+python-versions = ">=3.5"
+version = "0.7.7"
+
+[package.dependencies]
+toml = ">=0.10.0,<0.11.0"
+
+[[package]]
+category = "main"
+description = "Python Library for Tom's Obvious, Minimal Language"
+name = "toml"
+optional = false
+python-versions = "*"
+version = "0.10.0"
+
+[metadata]
+content-hash = "7335d3fa093f70b77439e92fa00ba1c990d37e4515bc588fce2144580db8b504"
+python-versions = "^3.7"
+
+[metadata.files]
+maturin = [
+    {file = "maturin-0.7.7-py2.py3-none-macosx_10_7_x86_64.whl", hash = "sha256:87a3d9a94f9c3b8d3ecc57017cdae2b3f1e0f6bfc851509f0b53c2486f312dcc"},
+    {file = "maturin-0.7.7-py2.py3-none-manylinux1_i686.whl", hash = "sha256:7f7f04de2acf379b1ff8993747f11bfb60760c69caf8c43414212cf7cc4b07ef"},
+    {file = "maturin-0.7.7-py2.py3-none-manylinux1_x86_64.whl", hash = "sha256:aa474d70630833349dac090306fd51a8af2df88080cea74ea4d831b40616ea41"},
+    {file = "maturin-0.7.7-py2.py3-none-win32.whl", hash = "sha256:5e6390245a023cbdca39d9276035fdee4d892b44d3ab798ccf2c3443d87e3f98"},
+    {file = "maturin-0.7.7-py2.py3-none-win_amd64.whl", hash = "sha256:4fd7fcf4e40e984274dc9caf80c08fa16a6c7c1f4ca1f694ba2ac3802b7340aa"},
+    {file = "maturin-0.7.7.tar.gz", hash = "sha256:2533c648aa8fa19f7a9d4f62282b4adce2f9c07c49f512005f92911be767555e"},
+]
+toml = [
+    {file = "toml-0.10.0-py2.7.egg", hash = "sha256:f1db651f9657708513243e61e6cc67d101a39bad662eaa9b5546f789338e07a3"},
+    {file = "toml-0.10.0-py2.py3-none-any.whl", hash = "sha256:235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e"},
+    {file = "toml-0.10.0.tar.gz", hash = "sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c"},
+]
diff --git a/tests/prefer-wheel/pyproject.toml b/tests/prefer-wheel/pyproject.toml
new file mode 100644
index 0000000..38fa20b
--- /dev/null
+++ b/tests/prefer-wheel/pyproject.toml
@@ -0,0 +1,15 @@
+[tool.poetry]
+name = "test_preferwheel"
+version = "0.1.0"
+description = ""
+authors = ["adisbladis <adisbladis@gmail.com>"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+maturin = "^0.7.7"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"
diff --git a/tests/prefer-wheel/test_preferwheel.py b/tests/prefer-wheel/test_preferwheel.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/trivial/default.nix b/tests/trivial/default.nix
index 7941317..bf33137 100644
--- a/tests/trivial/default.nix
+++ b/tests/trivial/default.nix
@@ -5,4 +5,17 @@ poetry2nix.mkPoetryApplication {
   pyproject = ./pyproject.toml;
   poetrylock = ./poetry.lock;
   src = lib.cleanSource ./.;
+
+  overrides = [
+    poetry2nix.defaultPoetryOverrides
+    (
+      self: super: {
+        maturin = (builtins.trace (lib.functionArgs super.maturin.override) super.maturin.override) {
+          preferWheel = true;
+        };
+      }
+    )
+
+  ];
+
 }