diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
index 379ad53c6dba5..27ba003c6ef17 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
@@ -431,23 +431,27 @@ public class UserSwitcherController {
     }
 
     private void listenForCallState() {
-        TelephonyManager.from(mContext).listen(new PhoneStateListener() {
-            private int mCallState;
-            @Override
-            public void onCallStateChanged(int state, String incomingNumber) {
-                if (mCallState == state) return;
-                if (DEBUG) Log.v(TAG, "Call state changed: " + state);
-                mCallState = state;
-                int currentUserId = ActivityManager.getCurrentUser();
-                UserInfo userInfo = mUserManager.getUserInfo(currentUserId);
-                if (userInfo != null && userInfo.isGuest()) {
-                    showGuestNotification(currentUserId);
-                }
-                refreshUsers(UserHandle.USER_NULL);
-            }
-        }, PhoneStateListener.LISTEN_CALL_STATE);
+        TelephonyManager.from(mContext).listen(mPhoneStateListener,
+                PhoneStateListener.LISTEN_CALL_STATE);
     }
 
+    private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
+        private int mCallState;
+
+        @Override
+        public void onCallStateChanged(int state, String incomingNumber) {
+            if (mCallState == state) return;
+            if (DEBUG) Log.v(TAG, "Call state changed: " + state);
+            mCallState = state;
+            int currentUserId = ActivityManager.getCurrentUser();
+            UserInfo userInfo = mUserManager.getUserInfo(currentUserId);
+            if (userInfo != null && userInfo.isGuest()) {
+                showGuestNotification(currentUserId);
+            }
+            refreshUsers(UserHandle.USER_NULL);
+        }
+    };
+
     private BroadcastReceiver mReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {