diff --git a/kdecoration/breezedecoration.h b/kdecoration/breezedecoration.h
--- a/kdecoration/breezedecoration.h
+++ b/kdecoration/breezedecoration.h
@@ -138,7 +138,6 @@
         //@}
 
         InternalSettingsPtr m_internalSettings;
-        QList<KDecoration2::DecorationButton*> m_buttons;
         KDecoration2::DecorationButtonGroup *m_leftButtons = nullptr;
         KDecoration2::DecorationButtonGroup *m_rightButtons = nullptr;