diff --git a/lib/exposure/exposure.js b/lib/exposure/exposure.js
index 10cf1d7..046df46 100644
--- a/lib/exposure/exposure.js
+++ b/lib/exposure/exposure.js
@@ -231,6 +231,10 @@ export default class Exposure {
                 return null;
             }
 
+            if (typeof(filters) === 'string') {
+                filters = {_id: filters};
+            }
+
             collection.firewall(filters, options, userId);
 
             return findOne(filters, options);