diff --git a/src/diff.c b/src/diff.c
index 8e59eba..b3a32dd 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -127,6 +127,7 @@ wrap_patch(git_patch *patch)
             }
         }
     }
+    git_patch_free(patch);
 
     return (PyObject*) py_patch;
 }