diff --git a/dlls/d3drm/Makefile.in b/dlls/d3drm/Makefile.in
index f75a14bd501..1c2cbf4c9f9 100644
--- a/dlls/d3drm/Makefile.in
+++ b/dlls/d3drm/Makefile.in
@@ -2,6 +2,8 @@ MODULE    = d3drm.dll
 IMPORTLIB = d3drm
 IMPORTS   = d3dxof ddraw
 
+EXTRADLLFLAGS = -mno-cygwin
+
 C_SRCS = \
 	d3drm.c \
 	d3drm_main.c \
diff --git a/dlls/d3drm/d3drm.c b/dlls/d3drm/d3drm.c
index d0f20235a8f..e649bad3da5 100644
--- a/dlls/d3drm/d3drm.c
+++ b/dlls/d3drm/d3drm.c
@@ -20,9 +20,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/d3drm_main.c b/dlls/d3drm/d3drm_main.c
index 1abfe6f46ef..075b331e051 100644
--- a/dlls/d3drm/d3drm_main.c
+++ b/dlls/d3drm/d3drm_main.c
@@ -17,9 +17,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "initguid.h"
 #include "d3drm_private.h"
 
diff --git a/dlls/d3drm/device.c b/dlls/d3drm/device.c
index 2aa7e48086b..2e1b5f2d24f 100644
--- a/dlls/d3drm/device.c
+++ b/dlls/d3drm/device.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/face.c b/dlls/d3drm/face.c
index 324b1de1bcb..1799ad98cf4 100644
--- a/dlls/d3drm/face.c
+++ b/dlls/d3drm/face.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/frame.c b/dlls/d3drm/frame.c
index 11105db4032..8bed50b57eb 100644
--- a/dlls/d3drm/frame.c
+++ b/dlls/d3drm/frame.c
@@ -19,9 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/light.c b/dlls/d3drm/light.c
index e31c02675ae..2f53f200aad 100644
--- a/dlls/d3drm/light.c
+++ b/dlls/d3drm/light.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/material.c b/dlls/d3drm/material.c
index 62acb5a8d4a..e402ea630d3 100644
--- a/dlls/d3drm/material.c
+++ b/dlls/d3drm/material.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/math.c b/dlls/d3drm/math.c
index a6c0c858126..01d596b8a5b 100644
--- a/dlls/d3drm/math.c
+++ b/dlls/d3drm/math.c
@@ -17,9 +17,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 /* Create a RGB color from its components */
diff --git a/dlls/d3drm/meshbuilder.c b/dlls/d3drm/meshbuilder.c
index 009055593cb..9b85c2d0d0b 100644
--- a/dlls/d3drm/meshbuilder.c
+++ b/dlls/d3drm/meshbuilder.c
@@ -19,9 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/texture.c b/dlls/d3drm/texture.c
index 7741718ce90..07f0896a30b 100644
--- a/dlls/d3drm/texture.c
+++ b/dlls/d3drm/texture.c
@@ -19,9 +19,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);
diff --git a/dlls/d3drm/viewport.c b/dlls/d3drm/viewport.c
index 5c0e24bc429..81d3af444f4 100644
--- a/dlls/d3drm/viewport.c
+++ b/dlls/d3drm/viewport.c
@@ -18,9 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include "d3drm_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3drm);