diff --git a/src/com/android/settings/deletionhelper/DeletionHelperFragment.java b/src/com/android/settings/deletionhelper/DeletionHelperFragment.java
index 9f78b0d..8871adb 100644
--- a/src/com/android/settings/deletionhelper/DeletionHelperFragment.java
+++ b/src/com/android/settings/deletionhelper/DeletionHelperFragment.java
@@ -153,6 +153,7 @@
         final ArrayList<AppEntry> apps =
                 mSession.rebuild(AppStateUsageStatsBridge.FILTER_USAGE_STATS,
                         ApplicationsState.SIZE_COMPARATOR);
+        if (apps == null) return;
         mAppEntries = apps;
         cacheRemoveAllPrefs(mApps);
         int entryCount = apps.size();