1 files changed, 1 insertions, 3 deletions
diff --git a/re.c b/re.c
index 38a40771aa..e24050cfab 100644
--- a/re.c
+++ b/re.c
@@ -2904,9 +2904,7 @@ rb_reg_initialize_m(int argc, VALUE *argv, VALUE self)
     const char *ptr;
     long len;
 
-    if (argc == 0 || argc > 3) {
-	rb_raise(rb_eArgError, "wrong number of arguments (%d for 1..3)", argc);
-    }
+    rb_check_arity(argc, 1, 3);
     if (TYPE(argv[0]) == T_REGEXP) {
 	VALUE re = argv[0];