diff --git a/components/myguiplatform/myguirendermanager.hpp b/components/myguiplatform/myguirendermanager.hpp
index 9a53b06c06..a940b31050 100644
--- a/components/myguiplatform/myguirendermanager.hpp
+++ b/components/myguiplatform/myguirendermanager.hpp
@@ -74,11 +74,7 @@ namespace osgMyGUI
             return static_cast<RenderManager*>(MyGUI::RenderManager::getInstancePtr());
         }
 
-        bool checkTexture(MyGUI::ITexture* _texture)
-#if MYGUI_DEBUG_MODE == 1 /* needed workaround for MyGUI 3.4.2 */
-            override
-#endif
-            ;
+        bool checkTexture(MyGUI::ITexture* _texture) override;
 
         /** @see RenderManager::getViewSize */
         const MyGUI::IntSize& getViewSize() const override