diff --git a/test/test/spec/module_spec.rb b/test/test/spec/module_spec.rb
index 80a49439..108888af 100644
--- a/test/test/spec/module_spec.rb
+++ b/test/test/spec/module_spec.rb
@@ -31,6 +31,18 @@ describe "Module" do
     end
   end
 
+  module BaseModule2
+    def testMethod1(obj)
+      $module2_method_called = true
+      super
+    end
+    def testMethod2(obj)
+      $module2_method_called = true
+      super
+    end
+  end
+
+
   class TestRM583 < TestModuleInclude
     include BaseModule
   end
@@ -40,4 +52,19 @@ describe "Module" do
     TestRM583.new.run_testMethod2.should == 456
     TestRM583.new.run_testMethod1.should == 123
   end
+
+  class TestRM601 < TestModuleInclude
+    include BaseModule, BaseModule2
+  end
+
+  # RM-601
+  it "included module methods should be call correctly from Objc if included some module" do
+    $module2_method_called = false
+    TestRM601.new.run_testMethod2.should == 456
+    $module2_method_called.should == true
+
+    $module2_method_called = false
+    TestRM601.new.run_testMethod1.should == 123
+    $module2_method_called.should == true
+  end
 end