1 files changed, 6 insertions, 0 deletions

diff --git a/parse.c b/parse.c
index b336fbf..11a698f 100644
--- a/parse.c
+++ b/parse.c
@@ -822,6 +822,12 @@ static bool parse_fn_expr(Parser *p, FnExpr *f) {
 	} else {
 		if (!parse_decl_list(p, &f->params, DECL_END_RPAREN_COMMA))
 		    return false;
+		arr_foreach(f->params, Declaration, param) {
+			if (param->type.kind == TYPE_TUPLE) {
+				err_print(param->where, "Functions can't have tuple parameters.");
+				return false;
+			}
+		}
 		arr_foreach(f->params, Declaration, param)
 			param->flags |= DECL_IS_PARAM;
 	}