diff --git a/libtaskmanager/xwindowtasksmodel.cpp b/libtaskmanager/xwindowtasksmodel.cpp
--- a/libtaskmanager/xwindowtasksmodel.cpp
+++ b/libtaskmanager/xwindowtasksmodel.cpp
@@ -582,7 +582,7 @@
             }
 
             if (!mapped.isEmpty() && services.empty()) {
-                services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ Name)").arg(mapped));
+                services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ Name) and (not exist NoDisplay or not NoDisplay)").arg(mapped));
             }
 
             // To match other docks (docky, unity, etc.) attempt to match on DesktopEntryName first ...
@@ -597,7 +597,7 @@
 
             // Try 'Name' - unfortunately this can be translated, so has a good chance of failing! (As it does for KDE's own "System Settings" (even in English!!))
             if (services.empty()) {
-                services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ Name)").arg(classClass));
+                services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ Name) and (not exist NoDisplay or not NoDisplay)").arg(classClass));
             }
         }