diff --git a/Python/ast.c b/Python/ast.c
index e2092f0f85433e95cc690b03cc5399b448f61d81..70db6558ee265f0555ff9c20a821e5f91edd271a 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -2841,7 +2841,7 @@ ast_for_call(struct compiling *c, const node *n, expr_ty func, bool allowgen)
                 }
                 else if (e->kind != Name_kind) {
                     ast_error(c, chch,
-                            "keyword can't be an expression");
+                            "keyword argument can't be an expression");
                     return NULL;
                 }
                 else if (forbidden_name(c, e->v.Name.id, ch, 1)) {