diff --git a/FEXCore/include/FEXCore/Debug/InternalThreadState.h b/FEXCore/include/FEXCore/Debug/InternalThreadState.h
index 93829dd0b..aa35bba25 100644
--- a/FEXCore/include/FEXCore/Debug/InternalThreadState.h
+++ b/FEXCore/include/FEXCore/Debug/InternalThreadState.h
@@ -104,8 +104,6 @@ struct alignas(FEXCore::Utils::FEX_PAGE_SIZE) InternalThreadState : public FEXCo
 
   std::shared_ptr<FEXCore::CompileService> CompileService;
 
-  std::shared_mutex ObjectCacheRefCounter {};
-
   // This pointer is owned by the frontend.
   FEXCore::SHMStats::ThreadStats* ThreadStats {};