1 files changed, 4 insertions, 0 deletions
diff --git a/field.c b/field.c
index 1cbd547d..88309a88 100644
--- a/field.c
+++ b/field.c
@@ -979,6 +979,8 @@ do_split(int nargs)
 			 Regexp *, Setfunc, NODE *, NODE *, bool);
 	Regexp *rp = NULL;
 
+	check_args_min_max(nargs, "split", 3, 4);
+
 	if (nargs == 4) {
 		static bool warned = false;
 
@@ -1081,6 +1083,8 @@ do_patsplit(int nargs)
 	char *s;
 	Regexp *rp = NULL;
 
+	check_args_min_max(nargs, "patsplit", 3, 4);
+
 	if (nargs == 4) {
 		sep_arr = POP_PARAM();
 		if (sep_arr->type != Node_var_array)