diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index e8447bb..ac95e8b 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -172,7 +172,7 @@
 		return PyErr_NoMemory();
 	op->ob_type = &PyComplex_Type;
 	op->cval = cval;
-	_Py_NewReference(op);
+	_Py_NewReference((PyObject *)op);
 	return (PyObject *) op;
 }