diff --git a/Python/ceval.c b/Python/ceval.c
index 4b0ff7e..339a351 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3060,7 +3060,7 @@
 				    defcount ? "at most" : "exactly",
 				    co->co_argcount,
 				    co->co_argcount == 1 ? "" : "s",
-				    argcount);
+				    argcount + kwcount);
 				goto fail;
 			}
 			n = co->co_argcount;