diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 8d7a182..4fbf23b 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -259,7 +259,7 @@
                         + newDefaultSubIdObj + " newDefaultPhoneId=" + newDefaultPhoneId);
                 }
 
-                if(validatePhoneId(newDefaultPhoneId) && (newDefaultSubIdObj.equals(mDefaultSubId)
+                if(validatePhoneId(newDefaultPhoneId) && (!newDefaultSubIdObj.equals(mDefaultSubId)
                         || (newDefaultPhoneId != mDefaultPhoneId))) {
                     mHandler.sendMessage(mHandler.obtainMessage(MSG_UPDATE_DEFAULT_SUB,
                             newDefaultPhoneId, 0, newDefaultSubIdObj));