diff --git a/reactos/base/applications/dxdiag/d3dtest7.c b/reactos/base/applications/dxdiag/d3dtest7.c
index 3d61fd93c04..e41d66e0990 100644
--- a/reactos/base/applications/dxdiag/d3dtest7.c
+++ b/reactos/base/applications/dxdiag/d3dtest7.c
@@ -7,7 +7,6 @@
  */
 
 #include "precomp.h"
-//#include <d3d.h>
 
 BOOL D3D7Test(HWND hWnd)
 {
diff --git a/reactos/base/applications/dxdiag/d3dtest8.c b/reactos/base/applications/dxdiag/d3dtest8.c
index def8200b4b0..cdf86cf8975 100644
--- a/reactos/base/applications/dxdiag/d3dtest8.c
+++ b/reactos/base/applications/dxdiag/d3dtest8.c
@@ -7,7 +7,6 @@
  */
 
 #include "precomp.h"
-//#include <d3d8.h>
 
 BOOL D3D8Test(HWND hWnd)
 {
diff --git a/reactos/base/applications/dxdiag/d3dtest9.c b/reactos/base/applications/dxdiag/d3dtest9.c
index c5c2cc994e6..a2587b91c57 100644
--- a/reactos/base/applications/dxdiag/d3dtest9.c
+++ b/reactos/base/applications/dxdiag/d3dtest9.c
@@ -7,7 +7,6 @@
  */
 
 #include "precomp.h"
-//#include <d3d9.h>
 
 BOOL D3D9Test(HWND hWnd)
 {