diff --git a/apps/openmw/mwgui/class.cpp b/apps/openmw/mwgui/class.cpp
index 8466c9d3e..f52836f47 100644
--- a/apps/openmw/mwgui/class.cpp
+++ b/apps/openmw/mwgui/class.cpp
@@ -670,13 +670,10 @@ void CreateClassDialog::onBackClicked(MyGUI::Widget* _sender)
 /* SelectSpecializationDialog */
 
 SelectSpecializationDialog::SelectSpecializationDialog(MWWorld::Environment& environment, MyGUI::IntSize gameWindowSize)
-  : Layout("openmw_chargen_select_specialization_layout.xml")
+  : WindowBase("openmw_chargen_select_specialization_layout.xml", environment)
 {
     // Centre dialog
-    MyGUI::IntCoord coord = mMainWidget->getCoord();
-    coord.left = (gameWindowSize.width - coord.width)/2;
-    coord.top = (gameWindowSize.height - coord.height)/2;
-    mMainWidget->setCoord(coord);
+    center();
 
     WindowManager *wm = environment.mWindowManager;
 
diff --git a/apps/openmw/mwgui/class.hpp b/apps/openmw/mwgui/class.hpp
index 28c2df3c7..59d4d721c 100644
--- a/apps/openmw/mwgui/class.hpp
+++ b/apps/openmw/mwgui/class.hpp
@@ -153,7 +153,7 @@ namespace MWGui
         std::string currentClassId;
     };
 
-    class SelectSpecializationDialog : public OEngine::GUI::Layout
+    class SelectSpecializationDialog : public WindowBase
     {
     public:
         SelectSpecializationDialog(MWWorld::Environment& environment, MyGUI::IntSize gameWindowSize);