diff --git a/java/src/com/android/inputmethod/latin/TargetApplicationGetter.java b/java/src/com/android/inputmethod/latin/TargetApplicationGetter.java
index 4fb2e97..4265309 100644
--- a/java/src/com/android/inputmethod/latin/TargetApplicationGetter.java
+++ b/java/src/com/android/inputmethod/latin/TargetApplicationGetter.java
@@ -29,6 +29,7 @@
             new LruCache<String, ApplicationInfo>(MAX_CACHE_ENTRIES);
 
     public static ApplicationInfo getCachedApplicationInfo(final String packageName) {
+        if (null == packageName) return null;
         return sCache.get(packageName);
     }
     public static void removeApplicationInfoCache(final String packageName) {