diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 15b8fa3e69c49573f57643fd9fabef322e0dd7c6..aa48d03a3253350051f591640931ebf8c370c1c9 100644
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -1437,7 +1437,7 @@ static INLINE unsigned PY_LONG_LONG __pyx_PyInt_AsUnsignedLongLong(PyObject* x)
         return PyLong_AsUnsignedLongLong(x);
     }
     else {
-        PY_LONG_LONG val;
+        unsigned PY_LONG_LONG val;
         PyObject* tmp = PyNumber_Int(x); if (!tmp) return (PY_LONG_LONG)-1;
         val = __pyx_PyInt_AsUnsignedLongLong(tmp);
         Py_DECREF(tmp);