diff --git a/applet.h b/applet.h
index 9157c8d75..6b2ed6d0c 100644
--- a/applet.h
+++ b/applet.h
@@ -661,6 +661,11 @@ class PLASMA_EXPORT Applet : public QGraphicsWidget
          */
          QSizeF sizeHint(Qt::SizeHint which, const QSizeF & constraint = QSizeF()) const;
 
+         /**
+          * Reimplemented from QObject
+          */
+        void timerEvent (QTimerEvent *event);
+
     private:
         Q_DISABLE_COPY(Applet)
         Q_PRIVATE_SLOT(d, void checkImmutability())
diff --git a/applet_p.h b/applet_p.h
index d759e8f2c..28aa31fd7 100644
--- a/applet_p.h
+++ b/applet_p.h
@@ -85,6 +85,7 @@ public:
     Plasma::Constraints pendingConstraints;
     Plasma::AspectRatioMode aspectRatioMode;
     ImmutabilityType immutability;
+    int constraintsTimerId;
     bool hasConfigurationInterface : 1;
     bool failed : 1;
     bool isContainment : 1;