diff --git a/Makefile.am b/Makefile.am
index 8f0fc5ff..aa2e2f65 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,8 +14,6 @@ widl_headers = \
 	include/vkd3d_dxgitype.h
 
 vkd3d_public_headers = \
-	include/dummy/rpc.h \
-	include/dummy/rpcndr.h \
 	include/vkd3d.h \
 	include/vkd3d_d3d12.h \
 	include/vkd3d_d3dcommon.h \
@@ -149,6 +147,7 @@ EXTRA_DIST += $(widl_headers) $(widl_headers:.h=.idl)
 $(widl_headers): %.h: %.idl
 if HAVE_WIDL
 	$(VKD3D_V_WIDL)$(WIDL) -o $@ $<
+	sed -e '/#include <\(rpc.h\|rpcndr.h\)>/d' -i $@
 else
 	echo "widl is required to generate $<"
 endif
diff --git a/include/dummy/rpc.h b/include/dummy/rpc.h
deleted file mode 100644
index 259a37a2..00000000
--- a/include/dummy/rpc.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2016 Józef Kucia for CodeWeavers
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- */
-
-/* XXX: This is a dummy header required by files generated by widl. */
-#ifndef __VKD3D_RPC_H__
-#define __VKD3D_RPC_H__
-
-#define __RPC_STUB
-
-typedef struct IRpcStubBuffer IRpcStubBuffer;
-typedef struct IRpcChannelBuffer IRpcChannelBuffer;
-
-typedef struct PRPC_MESSAGE PRPC_MESSAGE;
-
-#endif  /* __VKD3D_RPC_H__ */
diff --git a/include/dummy/rpcndr.h b/include/dummy/rpcndr.h
deleted file mode 100644
index 8d9b82ca..00000000
--- a/include/dummy/rpcndr.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright 2016 Józef Kucia for CodeWeavers
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- */
-
-/* XXX: This is a dummy header required by files generated by widl. */
-#ifndef __VKD3D_RPCNDR_H
-#define __VKD3D_RPCNDR_H
-
-#define MIDL_INTERFACE(x) struct
-
-#endif  /* __VKD3D_RPCNDR_H */
diff --git a/include/vkd3d_windows.h b/include/vkd3d_windows.h
index 425d1396..9cea6b45 100644
--- a/include/vkd3d_windows.h
+++ b/include/vkd3d_windows.h
@@ -182,6 +182,7 @@ typedef struct SECURITY_ATTRIBUTES SECURITY_ATTRIBUTES;
 # define interface struct
 # define BEGIN_INTERFACE
 # define END_INTERFACE
+# define MIDL_INTERFACE(x) struct
 
 # ifdef __cplusplus
 #  define EXTERN_C extern "C"