diff --git a/infer/src/checkers/ThreadSafety.ml b/infer/src/checkers/ThreadSafety.ml
index ab43c8112..f1a9aa8c7 100644
--- a/infer/src/checkers/ThreadSafety.ml
+++ b/infer/src/checkers/ThreadSafety.ml
@@ -1381,6 +1381,8 @@ let report_unsafe_accesses aggregated_access_map =
               is_class_threadsafe)
              && should_report_on_proc pdesc tenv
          | ObjC_Cpp objc_cpp ->
+             (* do not report if a procedure is private  *)
+             Procdesc.get_access pdesc <> PredSymb.Private &&
              (* report if the class has a mutex member  *)
              class_has_mutex_member objc_cpp tenv
          | _ ->
diff --git a/infer/tests/codetoanalyze/cpp/threadsafety/lock_guard.cpp b/infer/tests/codetoanalyze/cpp/threadsafety/lock_guard.cpp
index 5c474b01c..e0524efa6 100644
--- a/infer/tests/codetoanalyze/cpp/threadsafety/lock_guard.cpp
+++ b/infer/tests/codetoanalyze/cpp/threadsafety/lock_guard.cpp
@@ -52,5 +52,7 @@ class LockGuard {
   int suspiciously_written;
   int not_guarded;
   std::mutex mutex_;
+
+  int test2() { return suspiciously_read; }
 };
 }