diff --git a/Objects/call.c b/Objects/call.c
index b53a98c..e6076e7 100644
--- a/Objects/call.c
+++ b/Objects/call.c
@@ -699,7 +699,7 @@
 
     default:
         PyErr_SetString(PyExc_SystemError,
-                        "Bad call flags in _PyCFunction_FastCallKeywords. "
+                        "Bad call flags in _PyMethodDef_RawFastCallKeywords. "
                         "METH_OLDARGS is no longer supported!");
         goto exit;
     }