diff --git a/apps/openmw/mwgui/text_input.cpp b/apps/openmw/mwgui/text_input.cpp
index e1fc216c9..3758e75e6 100644
--- a/apps/openmw/mwgui/text_input.cpp
+++ b/apps/openmw/mwgui/text_input.cpp
@@ -6,15 +6,10 @@
 using namespace MWGui;
 
 TextInputDialog::TextInputDialog(MWWorld::Environment& environment)
-  : Layout("openmw_text_input_layout.xml")
-  , environment(environment)
+  : WindowBase("openmw_text_input_layout.xml", environment)
 {
     // Centre dialog
-    MyGUI::IntSize gameWindowSize = environment.mWindowManager->getGui()->getViewSize();
-    MyGUI::IntCoord coord = mMainWidget->getCoord();
-    coord.left = (gameWindowSize.width - coord.width)/2;
-    coord.top = (gameWindowSize.height - coord.height)/2;
-    mMainWidget->setCoord(coord);
+    center();
 
     getWidget(textEdit, "TextEdit");
     textEdit->eventEditSelectAccept = newDelegate(this, &TextInputDialog::onTextAccepted);
diff --git a/apps/openmw/mwgui/text_input.hpp b/apps/openmw/mwgui/text_input.hpp
index 5a38e9b46..9ca55715b 100644
--- a/apps/openmw/mwgui/text_input.hpp
+++ b/apps/openmw/mwgui/text_input.hpp
@@ -1,7 +1,7 @@
 #ifndef MWGUI_TEXT_INPUT_H
 #define MWGUI_TEXT_INPUT_H
 
-#include <openengine/gui/layout.hpp>
+#include "window_base.hpp"
 
 namespace MWWorld
 {
@@ -15,7 +15,7 @@ namespace MWGui
 {
     using namespace MyGUI;
 
-    class TextInputDialog : public OEngine::GUI::Layout
+    class TextInputDialog : public WindowBase
     {
     public:
         TextInputDialog(MWWorld::Environment& environment);
@@ -40,8 +40,6 @@ namespace MWGui
         void onTextAccepted(MyGUI::Edit* _sender);
 
     private:
-        MWWorld::Environment& environment;
-
         MyGUI::EditPtr textEdit;
     };
 }