diff --git a/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java b/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
index 36c0e34..1417995 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
@@ -102,9 +102,11 @@
     private void notifyChange() {
         // Create a new array to avoid concurrent modification when the activity destroys itself.
         mTempListeners = mListeners.toArray(mTempListeners);
-        for (OnChangeListener listener : mTempListeners) {
+        for (int i = mTempListeners.length - 1; i >= 0; --i) {
+            final OnChangeListener listener = mTempListeners[i];
             if (listener != null) {
                 listener.onExtractedColorsChanged(this);
+                mTempListeners[i] = null;
             }
         }
     }