1 files changed, 1 insertions, 1 deletions
diff --git a/src/parse.c b/src/parse.c
index 78d9a2ed..a1b54b73 100644
--- a/src/parse.c
+++ b/src/parse.c
@@ -568,7 +568,7 @@ type_ast_t *parse_func_type(parse_ctx_t *ctx, const char *pos) {
     const char *start = pos;
     if (!match_word(&pos, "func")) return NULL;
     spaces(&pos);
-    if (!match(&pos, "(")) return NULL;
+    expect_str(&pos, "(", "I expected a parenthesis here");
     arg_ast_t *args = parse_args(ctx, &pos);
     spaces(&pos);
     type_ast_t *ret = match(&pos, "->") ? optional(ctx, &pos, parse_type) : NULL;