1 files changed, 2 insertions, 2 deletions
diff --git a/src/mongo/db/operation_time_tracker.h b/src/mongo/db/operation_time_tracker.h
index 45b06ccac6e..a259ee22d37 100644
--- a/src/mongo/db/operation_time_tracker.h
+++ b/src/mongo/db/operation_time_tracker.h
@@ -31,7 +31,7 @@
 
 #include "mongo/db/logical_time.h"
 #include "mongo/db/operation_context.h"
-#include "mongo/stdx/mutex.h"
+#include "mongo/platform/mutex.h"
 
 namespace mongo {
 
@@ -57,7 +57,7 @@ public:
 
 private:
     // protects _maxOperationTime
-    mutable stdx::mutex _mutex;
+    mutable Mutex _mutex = MONGO_MAKE_LATCH("OperationTimeTracker::_mutex");
     LogicalTime _maxOperationTime;
 };