1 files changed, 1 insertions, 0 deletions
diff --git a/bignum.c b/bignum.c
index 00433cc40d..f2104f042c 100644
--- a/bignum.c
+++ b/bignum.c
@@ -3253,6 +3253,7 @@ Init_Bignum(void)
 
     rb_define_method(rb_cBignum, "<=>", rb_big_cmp, 1);
     rb_define_method(rb_cBignum, "==", rb_big_eq, 1);
+    rb_define_method(rb_cBignum, "===", rb_big_eq, 1);
     rb_define_method(rb_cBignum, "eql?", rb_big_eql, 1);
     rb_define_method(rb_cBignum, "hash", rb_big_hash, 0);
     rb_define_method(rb_cBignum, "to_f", rb_big_to_f, 0);