diff --git a/kcmkwin/kwindecoration/kcm.cpp b/kcmkwin/kwindecoration/kcm.cpp
--- a/kcmkwin/kwindecoration/kcm.cpp
+++ b/kcmkwin/kwindecoration/kcm.cpp
@@ -327,7 +327,6 @@
         m_leftButtons->add(*it);
     }
     const auto &right = readDecorationButtons(config, "ButtonsOnRight", QVector<KDecoration2::DecorationButtonType >{
-        KDecoration2::DecorationButtonType::ContextHelp,
         KDecoration2::DecorationButtonType::Minimize,
         KDecoration2::DecorationButtonType::Maximize,
         KDecoration2::DecorationButtonType::Close