diff --git a/core/java/android/preference/Preference.java b/core/java/android/preference/Preference.java
index f32e8cf9be5ff..3b482eb5a9b53 100644
--- a/core/java/android/preference/Preference.java
+++ b/core/java/android/preference/Preference.java
@@ -1438,7 +1438,7 @@ public class Preference implements Comparable<Preference> {
     protected boolean persistString(String value) {
         if (shouldPersist()) {
             // Shouldn't store null
-            if (value == getPersistedString(null)) {
+            if (TextUtils.equals(value, getPersistedString(null))) {
                 // It's already there, so the same as persisting
                 return true;
             }