diff --git a/cmds/statsd/src/StatsLogProcessor.cpp b/cmds/statsd/src/StatsLogProcessor.cpp
index f2443e8fb128b..f3bd8f8d62e30 100644
--- a/cmds/statsd/src/StatsLogProcessor.cpp
+++ b/cmds/statsd/src/StatsLogProcessor.cpp
@@ -482,6 +482,7 @@ void StatsLogProcessor::WriteDataToDisk() {
 }
 
 void StatsLogProcessor::informPullAlarmFired(const int64_t timestampNs) {
+    std::lock_guard<std::mutex> lock(mMetricsMutex);
     mStatsPullerManager.OnAlarmFired(timestampNs);
 }