diff --git a/kcms/lookandfeel/kcm.cpp b/kcms/lookandfeel/kcm.cpp
--- a/kcms/lookandfeel/kcm.cpp
+++ b/kcms/lookandfeel/kcm.cpp
@@ -338,7 +338,8 @@
       KConfigGroup cg(conf, grp);
       KConfigGroup cg2(&m_config, grp);
       cg.copyTo(&cg2);
-  }
+    }
+    KGlobalSettings::self()->emitChange(KGlobalSettings::PaletteChanged);
 }
 
 void KCMLookandFeel::setIcons(const QString &theme)