diff --git a/core/java/android/preference/Preference.java b/core/java/android/preference/Preference.java
index e343e83..6c02965 100644
--- a/core/java/android/preference/Preference.java
+++ b/core/java/android/preference/Preference.java
@@ -1072,6 +1072,9 @@
                 || (mOrder == DEFAULT_ORDER && another.mOrder != DEFAULT_ORDER)) {
             // Do order comparison
             return mOrder - another.mOrder; 
+        } else if (mTitle == another.mTitle) {
+            // If titles are null or share same object comparison
+            return 0;
         } else if (mTitle == null) {
             return 1;
         } else if (another.mTitle == null) {