diff --git a/lib/kcommondecoration.cpp b/lib/kcommondecoration.cpp
index 6e7d682d85..31beec1a9d 100644
--- a/lib/kcommondecoration.cpp
+++ b/lib/kcommondecoration.cpp
@@ -58,6 +58,16 @@ KCommonDecoration::~KCommonDecoration()
     delete m_previewWidget;
 }
 
+QString KCommonDecoration::defaultButtonsLeft()
+{
+    return KDecorationOptions::defaultTitleButtonsLeft();
+}
+
+QString KCommonDecoration::defaultButtonsRight()
+{
+    return KDecorationOptions::defaultTitleButtonsRight();
+}
+
 bool KCommonDecoration::decorationBehaviour(DecorationBehaviour behaviour) const
 {
     switch (behaviour) {
diff --git a/lib/kcommondecoration.h b/lib/kcommondecoration.h
index 3a8e6ad14d..43964f9c54 100644
--- a/lib/kcommondecoration.h
+++ b/lib/kcommondecoration.h
@@ -138,13 +138,13 @@ class KWIN_EXPORT KCommonDecoration : public KDecoration
          * @see KDecoration::titleButtonsLeft()
          * @see KDecoration::titleButtonsRight()
          */
-        virtual QString defaultButtonsLeft() const = 0;
+        virtual QString defaultButtonsLeft();
         /**
          * The default title button order on the left.
          * @see KDecoration::titleButtonsLeft()
          * @see KDecoration::titleButtonsRight()
          */
-        virtual QString defaultButtonsRight() const = 0;
+        virtual QString defaultButtonsRight();
 
         /**
          * This controls whether some specific behaviour should be enabled or not.
diff --git a/lib/kdecoration_p.cpp b/lib/kdecoration_p.cpp
index 4c982e94e3..e319a995fa 100644
--- a/lib/kdecoration_p.cpp
+++ b/lib/kdecoration_p.cpp
@@ -52,8 +52,8 @@ KDecorationOptionsPrivate::~KDecorationOptionsPrivate()
 
 void KDecorationOptionsPrivate::defaultKWinSettings()
     {
-    title_buttons_left = "MS";
-    title_buttons_right = "HIAX";
+    title_buttons_left = KDecorationOptions::defaultTitleButtonsLeft();
+    title_buttons_right = KDecorationOptions::defaultTitleButtonsRight();
     custom_button_positions = false;
     show_tooltips = true;
     border_size = BorderNormal;
@@ -172,13 +172,13 @@ unsigned long KDecorationOptionsPrivate::updateKWinSettings( KConfig* config )
     custom_button_positions = styleConfig.readEntry("CustomButtonPositions", false);
     if (custom_button_positions)
         {
-        title_buttons_left  = styleConfig.readEntry("ButtonsOnLeft", "MS");
-        title_buttons_right = styleConfig.readEntry("ButtonsOnRight", "HIAX");
+        title_buttons_left  = styleConfig.readEntry("ButtonsOnLeft", KDecorationOptions::defaultTitleButtonsLeft());
+        title_buttons_right = styleConfig.readEntry("ButtonsOnRight", KDecorationOptions::defaultTitleButtonsRight());
         }
     else
         {
-        title_buttons_left  = "MS";
-        title_buttons_right = "HIAX";
+        title_buttons_left  = KDecorationOptions::defaultTitleButtonsLeft();
+        title_buttons_right = KDecorationOptions::defaultTitleButtonsRight();
         }
     if( old_custom_button_positions != custom_button_positions
         || ( custom_button_positions &&