diff --git a/src/quickfix.c b/src/quickfix.c
index d1671b2..7cc83e3 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -8370,6 +8370,11 @@
 # ifdef FEAT_QUICKFIX
     win_T	*wp;
 
+    if (in_vim9script()
+	    && (check_for_number_arg(argvars, 0) == FAIL
+		|| check_for_opt_dict_arg(argvars, 1) == FAIL))
+	return;
+
     wp = find_win_by_nr_or_id(&argvars[0]);
     get_qf_loc_list(FALSE, wp, &argvars[1], rettv);
 # endif
@@ -8382,6 +8387,9 @@
 f_getqflist(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 {
 # ifdef FEAT_QUICKFIX
+    if (in_vim9script() && check_for_opt_dict_arg(argvars, 0) == FAIL)
+	return;
+
     get_qf_loc_list(TRUE, NULL, &argvars[0], rettv);
 # endif
 }