diff --git a/extensions/windows/standard/KDOverlays/stdafx.h b/extensions/windows/standard/KDOverlays/stdafx.h
index 809f40b07..9c30ef303 100644
--- a/extensions/windows/standard/KDOverlays/stdafx.h
+++ b/extensions/windows/standard/KDOverlays/stdafx.h
@@ -16,8 +16,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#define WIN32_LEAN_AND_MEAN
-
 #include "CommunicationSocket.h"
 #include "OverlayConstants.h"
 
diff --git a/extensions/windows/standard/KDUtil/stdafx.h b/extensions/windows/standard/KDUtil/stdafx.h
index c5214663f..c6eea3afe 100644
--- a/extensions/windows/standard/KDUtil/stdafx.h
+++ b/extensions/windows/standard/KDUtil/stdafx.h
@@ -18,6 +18,4 @@
 
 #pragma once
 
-#define WIN32_LEAN_AND_MEAN
-
 #include <windows.h>