1 files changed, 2 insertions, 3 deletions
diff --git a/src/mongo/db/repl/rollback_checker.h b/src/mongo/db/repl/rollback_checker.h
index 768dd47bf63..75a948af1cb 100644
--- a/src/mongo/db/repl/rollback_checker.h
+++ b/src/mongo/db/repl/rollback_checker.h
@@ -31,12 +31,11 @@
 
 #include "mongo/base/status_with.h"
 #include "mongo/executor/task_executor.h"
+#include "mongo/platform/mutex.h"
 
 namespace mongo {
 namespace repl {
 
-class Mutex;
-
 /**
  * The RollbackChecker maintains a sync source and its baseline rollback ID (rbid). It
  * contains methods to check if a rollback occurred by checking if the rbid has changed since
@@ -119,7 +118,7 @@ private:
     executor::TaskExecutor* const _executor;
 
     // Protects member data of this RollbackChecker.
-    mutable stdx::mutex _mutex;
+    mutable Mutex _mutex = MONGO_MAKE_LATCH("RollbackChecker::_mutex");
 
     // The sync source to check for rollbacks against.
     HostAndPort _syncSource;