diff --git a/code/nel/tools/3d/object_viewer_exe/std_afx.h b/code/nel/tools/3d/object_viewer_exe/std_afx.h
index 44b1cfadd..e666c4bc2 100644
--- a/code/nel/tools/3d/object_viewer_exe/std_afx.h
+++ b/code/nel/tools/3d/object_viewer_exe/std_afx.h
@@ -25,5 +25,6 @@
 #define VC_EXTRALEAN		// Exclude rarely-used stuff from Windows headers
 
 #define NOMINMAX
+#include <windows.h>
 
 #endif