diff --git a/effects/slidingpopups/slidingpopups.cpp b/effects/slidingpopups/slidingpopups.cpp
index a4932fa70c..842fc7c4dc 100644
--- a/effects/slidingpopups/slidingpopups.cpp
+++ b/effects/slidingpopups/slidingpopups.cpp
@@ -29,6 +29,9 @@ KWIN_EFFECT( slidingpopups, SlidingPopupsEffect )
 
 SlidingPopupsEffect::SlidingPopupsEffect()
     {
+    KConfigGroup conf = effects->effectConfig( "Fade" );
+    mFadeInTime = animationTime( conf, "FadeInTime", 150 );
+    mFadeOutTime = animationTime( conf, "FadeOutTime", 150 );
     mAtom = XInternAtom( display(), "_KDE_SLIDE", False );
     effects->registerPropertyType( mAtom, true );
     // TODO hackish way to announce support, make better after 4.0
@@ -135,7 +138,7 @@ void SlidingPopupsEffect::windowAdded( EffectWindow* w )
     propertyNotify( w, mAtom );
     if( w->isOnCurrentDesktop() && mWindowsData.contains( w ) )
         {
-        mAppearingWindows[ w ].setDuration( animationTime( 250 ));
+        mAppearingWindows[ w ].setDuration( animationTime( mFadeInTime ));
         mAppearingWindows[ w ].setProgress( 0.0 );
         mAppearingWindows[ w ].setCurveShape( TimeLine::EaseOutCurve );
 
@@ -150,7 +153,7 @@ void SlidingPopupsEffect::windowClosed( EffectWindow* w )
         {
         w->refWindow();
         mAppearingWindows.remove( w );
-        mDisappearingWindows[ w ].setDuration( animationTime( 250 ));
+        mDisappearingWindows[ w ].setDuration( animationTime( mFadeOutTime ));
         mDisappearingWindows[ w ].setProgress( 0.0 );
         mDisappearingWindows[ w ].setCurveShape( TimeLine::EaseOutCurve );
 
diff --git a/effects/slidingpopups/slidingpopups.h b/effects/slidingpopups/slidingpopups.h
index d75cc3e650..7829b901fb 100644
--- a/effects/slidingpopups/slidingpopups.h
+++ b/effects/slidingpopups/slidingpopups.h
@@ -60,6 +60,8 @@ class SlidingPopupsEffect
         QHash< const EffectWindow*, TimeLine > mAppearingWindows;
         QHash< const EffectWindow*, TimeLine > mDisappearingWindows;
         QHash< const EffectWindow*, Data > mWindowsData;
+	int mFadeInTime;
+	int mFadeOutTime;
     };
 
 } // namespace