diff --git a/variable.c b/variable.c
index 62256a0..72b8fe7 100644
--- a/variable.c
+++ b/variable.c
@@ -1357,7 +1357,13 @@ uninitialized_constant(VALUE klass, ID id)
 static VALUE
 const_missing(VALUE klass, ID id)
 {
-    return rb_funcall(klass, rb_intern("const_missing"), 1, ID2SYM(id));
+  ID const_missing_id = rb_intern("const_missing");
+  int arity = rb_obj_method_arity(klass, const_missing_id);
+  
+  if(arity == 1)
+    return rb_funcall(klass, const_missing_id, 1, ID2SYM(id));
+  else
+    return rb_funcall(klass, const_missing_id, 2, ID2SYM(id), rb_funcall(rb_cModule, rb_intern("nesting"), 0));
 }