diff --git a/applet.cpp b/applet.cpp
index 1be5b9b34..34734c4ea 100644
--- a/applet.cpp
+++ b/applet.cpp
@@ -53,7 +53,6 @@
 #include <kactioncollection.h>
 #include <kauthorized.h>
 #include <kcolorscheme.h>
-#include <kconfigdialog.h>
 #include <kdialog.h>
 #include <kicon.h>
 #include <kiconloader.h>
@@ -1805,7 +1804,7 @@ void Applet::showConfigurationInterface()
             QUiLoader loader;
             QWidget *w = loader.load(&f);
             if (w) {
-                dialog = new KConfigDialog(0, d->configDialogId(), d->configLoader);
+                dialog = new AppletConfigDialog(0, d->configDialogId(), d->configLoader);
                 dialog->setWindowTitle(d->configWindowTitle());
                 dialog->setAttribute(Qt::WA_DeleteOnClose, true);
                 dialog->addPage(w, i18n("Settings"), icon(), i18n("%1 Settings", name()));
@@ -1881,7 +1880,7 @@ QSet<QString> AppletPrivate::knownCategories()
 KConfigDialog *AppletPrivate::generateGenericConfigDialog()
 {
     KConfigSkeleton *nullManager = new KConfigSkeleton(0);
-    KConfigDialog *dialog = new KConfigDialog(0, configDialogId(), nullManager);
+    KConfigDialog *dialog = new AppletConfigDialog(0, configDialogId(), nullManager);
     dialog->setFaceType(KPageDialog::Auto);
     dialog->setWindowTitle(configWindowTitle());
     dialog->setAttribute(Qt::WA_DeleteOnClose, true);
diff --git a/private/applet_p.h b/private/applet_p.h
index 5a38a5a46..8020c7f6b 100644
--- a/private/applet_p.h
+++ b/private/applet_p.h
@@ -26,6 +26,7 @@
 #include <QGraphicsProxyWidget>
 
 #include <kactioncollection.h>
+#include <kconfigdialog.h>
 
 #include "plasma/animator.h"
 #include "plasma/private/dataengineconsumer_p.h"
@@ -47,6 +48,34 @@ class AppletScript;
 class Wallpaper;
 class BusyWidget;
 
+class AppletConfigDialog : public KConfigDialog
+{
+    Q_OBJECT
+
+public:
+    AppletConfigDialog(QWidget* parent, const QString &id, KConfigSkeleton *s)
+        : KConfigDialog(parent, id, s),
+          m_changed(false)
+    {
+    }
+
+public Q_SLOTS:
+    void settingsModified(bool modified = true)
+    {
+        m_changed = modified;
+        updateButtons();
+    }
+
+protected:
+    bool hasChanged()
+    {
+        return m_changed || KConfigDialog::hasChanged();
+    }
+
+private:
+    bool m_changed;
+};
+
 class AppletOverlayWidget : public QGraphicsWidget
 {
     Q_OBJECT