diff --git a/rocclr/runtime/os/os_posix.cpp b/rocclr/runtime/os/os_posix.cpp
index 3617d36d05..cfc708548b 100644
--- a/rocclr/runtime/os/os_posix.cpp
+++ b/rocclr/runtime/os/os_posix.cpp
@@ -42,6 +42,7 @@
 #include <limits.h>
 #include <memory>
 #include <algorithm>
+#include <mutex>
 
 
 namespace amd {