diff --git a/services/java/com/android/server/net/NetworkStatsService.java b/services/java/com/android/server/net/NetworkStatsService.java
index 0efdead7f9..a3b44e26d8 100644
--- a/services/java/com/android/server/net/NetworkStatsService.java
+++ b/services/java/com/android/server/net/NetworkStatsService.java
@@ -939,14 +939,14 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
     }
 
     private void performPoll(int flags) {
+        // try refreshing time source when stale
+        if (mTime.getCacheAge() > mSettings.getTimeCacheMaxAge()) {
+            mTime.forceRefresh();
+        }
+
         synchronized (mStatsLock) {
             mWakeLock.acquire();
 
-            // try refreshing time source when stale
-            if (mTime.getCacheAge() > mSettings.getTimeCacheMaxAge()) {
-                mTime.forceRefresh();
-            }
-
             try {
                 performPollLocked(flags);
             } finally {