1 files changed, 1 insertions, 0 deletions
diff --git a/numeric.c b/numeric.c
index 28ecba54d3..20dff3a833 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1430,6 +1430,7 @@ Init_Numeric()
 
     rb_define_method(rb_cNumeric, "+@", num_uplus, 0);
     rb_define_method(rb_cNumeric, "-@", num_uminus, 0);
+    rb_define_method(rb_cNumeric, "===", num_equal, 1);
     rb_define_method(rb_cNumeric, "eql?", num_eql, 1);
     rb_define_method(rb_cNumeric, "divmod", num_divmod, 1);
     rb_define_method(rb_cNumeric, "abs", num_abs, 0);