diff --git a/src/base/tl/threading.h b/src/base/tl/threading.h
index c2bc5abcc..2cfbc0523 100644
--- a/src/base/tl/threading.h
+++ b/src/base/tl/threading.h
@@ -35,6 +35,9 @@
 #elif defined(_MSC_VER)
 	#include <intrin.h>
 
+	#define WIN32_LEAN_AND_MEAN
+	#include <windows.h>
+
 	inline unsigned atomic_inc(volatile unsigned *pValue)
 	{
 		return _InterlockedIncrement((volatile long *)pValue);
@@ -52,7 +55,7 @@
 
 	inline void sync_barrier()
 	{
-		_mm_mfence();
+		MemoryBarrier();
 	}
 #else
 	#error missing atomic implementation for this compiler
diff --git a/src/engine/client/client.cpp b/src/engine/client/client.cpp
index 30f92eb0b..3300d6ca5 100644
--- a/src/engine/client/client.cpp
+++ b/src/engine/client/client.cpp
@@ -7,7 +7,6 @@
 
 #include <base/math.h>
 #include <base/system.h>
-#include <base/tl/threading.h>
 
 #include <engine/client.h>
 #include <engine/config.h>