diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegistrationFailCause.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegistrationFailCause.aidl
index 56f516d532..fcc079ec0f 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegistrationFailCause.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegistrationFailCause.aidl
@@ -50,7 +50,11 @@ enum RegistrationFailCause {
   ROAMING_NOT_ALLOWED = 13,
   GPRS_SERVICES_NOT_ALLOWED_IN_PLMN = 14,
   NO_SUITABLE_CELLS = 15,
+  /**
+   * @deprecated MSC_TEMPORARILY_NOT_REACHABLE value is wrong and should not be used. Use MSC_TEMP_NOT_REACHABLE instead.
+   */
   MSC_TEMPORARILY_NOT_REACHABLE = 15,
+  MSC_TEMP_NOT_REACHABLE = 16,
   NETWORK_FAILURE = 17,
   MAC_FAILURE = 20,
   SYNC_FAILURE = 21,
diff --git a/radio/aidl/android/hardware/radio/network/RegistrationFailCause.aidl b/radio/aidl/android/hardware/radio/network/RegistrationFailCause.aidl
index 2955f9658d..11fd8c5ec9 100644
--- a/radio/aidl/android/hardware/radio/network/RegistrationFailCause.aidl
+++ b/radio/aidl/android/hardware/radio/network/RegistrationFailCause.aidl
@@ -86,9 +86,14 @@ enum RegistrationFailCause {
      */
     NO_SUITABLE_CELLS = 15,
     /**
-     * 16 - MSC temporarily not reachable
+     * @deprecated MSC_TEMPORARILY_NOT_REACHABLE value is wrong and should not be used.
+     * Use MSC_TEMP_NOT_REACHABLE instead.
      */
     MSC_TEMPORARILY_NOT_REACHABLE = 15,
+    /**
+     * 16 - MSC temporarily not reachable
+     */
+    MSC_TEMP_NOT_REACHABLE = 16,
     /**
      * 17 - Network Failure
      */