diff --git a/effects/fadedesktop/package/contents/code/main.js b/effects/fadedesktop/package/contents/code/main.js
index 4b1cd8d0dc..d3ba74c299 100644
--- a/effects/fadedesktop/package/contents/code/main.js
+++ b/effects/fadedesktop/package/contents/code/main.js
@@ -36,7 +36,7 @@ effects['desktopChanged(int,int)'].connect(function(oldDesktop, newDesktop) {
         if (w.minimized) {
             continue;
         }
-        if (!w.isOnActivity(currentActivity)){
+        if (!w.isOnActivity(effects.currentActivity)){
             continue;
         }
         if (w.desktop == oldDesktop) {