1 files changed, 8 insertions, 1 deletions
diff --git a/compar.c b/compar.c
index eea76cb637..2f4db291a4 100644
--- a/compar.c
+++ b/compar.c
@@ -52,9 +52,16 @@ rb_invcmp(VALUE x, VALUE y)
 }
 
 static VALUE
+cmp_eq_recursive(VALUE arg1, VALUE arg2, int recursive)
+{
+    if (recursive) return Qfalse;
+    return rb_funcallv(arg1, cmp, 1, &arg2);
+}
+
+static VALUE
 cmp_eq(VALUE *a)
 {
-    VALUE c = rb_funcall(a[0], cmp, 1, a[1]);
+    VALUE c = rb_exec_recursive_paired_outer(cmp_eq_recursive, a[0], a[1], a[1]);
 
     if (NIL_P(c)) return Qfalse;
     if (rb_cmpint(c, a[0], a[1]) == 0) return Qtrue;