diff --git a/doc/source/acb.rst b/doc/source/acb.rst
index 58a3f6af..0aaf5063 100644
--- a/doc/source/acb.rst
+++ b/doc/source/acb.rst
@@ -868,7 +868,7 @@ Lambert W function
 Rising factorials
 -------------------------------------------------------------------------------
 
-.. function:: void acb_rising_ui(acb_t z, const acb_t x, const acb_t n, slong prec)
+.. function:: void acb_rising_ui(acb_t z, const acb_t x, ulong n, slong prec)
               void acb_rising(acb_t z, const acb_t x, const acb_t n, slong prec)
 
     Computes the rising factorial `z = x (x+1) (x+2) \cdots (x+n-1)`.
diff --git a/doc/source/arb_hypgeom.rst b/doc/source/arb_hypgeom.rst
index b6e0d368..7d725adf 100644
--- a/doc/source/arb_hypgeom.rst
+++ b/doc/source/arb_hypgeom.rst
@@ -95,7 +95,7 @@ Gamma function
     series together with argument reduction. If *reciprocal* is set,
     the reciprocal gamma function is computed instead.
 
-.. function:: int arb_hypgeom_gamma_taylor(arb_t res, const arb_t x,int reciprocal,  slong prec)
+.. function:: int arb_hypgeom_gamma_taylor(arb_t res, const arb_t x, int reciprocal, slong prec)
 
     Attempts to compute the gamma function of *x* using Taylor series
     together with argument reduction. This is only supported if *x* and *prec*