diff --git a/src/platformtheme/kwaylandintegration.cpp b/src/platformtheme/kwaylandintegration.cpp
--- a/src/platformtheme/kwaylandintegration.cpp
+++ b/src/platformtheme/kwaylandintegration.cpp
@@ -77,7 +77,7 @@
             return false;
         }
         QWindow *w = qobject_cast<QWindow*>(watched);
-        if (!w || w->parent()) {
+        if (!w || w->parent() || !w->isVisible()) {
             return false;
         }
         if(w->property("org.kde.plasma.integration.waylandserverdecoration").isNull()) {