diff --git a/src/optick.h b/src/optick.h
index 96b28b9..8782d73 100644
--- a/src/optick.h
+++ b/src/optick.h
@@ -787,6 +787,7 @@ struct OPTICK_API GPUContextScope
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 OPTICK_API const EventDescription* GetFrameDescription(FrameType::Type frame = FrameType::CPU);
+OPTICK_API void AttachTag(EventStorage* storage, const EventDescription& description, uint32_t val, int64_t timestamp);
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 typedef void* (*AllocateFn)(size_t);
 typedef void  (*DeallocateFn)(void*);
diff --git a/src/optick_core.cpp b/src/optick_core.cpp
index a992c4f..b5b3537 100644
--- a/src/optick_core.cpp
+++ b/src/optick_core.cpp
@@ -1823,6 +1823,11 @@ OPTICK_API const EventDescription* GetFrameDescription(FrameType::Type frame)
 	return Core::Get().GetFrameDescription(frame);
 }
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+OPTICK_API void AttachTag(EventStorage* storage, const EventDescription& description, uint32_t val, int64_t timestamp)
+{
+    storage->tagU32Buffer.Add(TagU32(description, val, timestamp));
+}
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 OPTICK_API void SetAllocator(AllocateFn allocateFn, DeallocateFn deallocateFn, InitThreadCb initThreadCb)
 {
 	Memory::SetAllocator(allocateFn, deallocateFn, initThreadCb);