diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 2c4cc73..142eca4 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -1330,14 +1330,13 @@
         Py_DECREF(outer);
         outer = tmp;
     }
-
-    goto done;
+    Py_DECREF(inner);
+    return outer;
 
   error:
     Py_DECREF(outer);
-  done:
     Py_DECREF(inner);
-    return outer;
+    return NULL;
 }
 
 /* Lookup table for small factorial values */