diff --git a/reactos/dll/directx/wine/d3dx9_36/CMakeLists.txt b/reactos/dll/directx/wine/d3dx9_36/CMakeLists.txt
index 72df0342ea7..b4144ac8d37 100644
--- a/reactos/dll/directx/wine/d3dx9_36/CMakeLists.txt
+++ b/reactos/dll/directx/wine/d3dx9_36/CMakeLists.txt
@@ -26,6 +26,7 @@ list(APPEND SOURCE
 
 add_library(d3dx9_36 SHARED ${SOURCE} version.rc)
 set_module_type(d3dx9_36 win32dll)
+add_dependencies(d3dx9_36 d3d_idl_headers)
 target_link_libraries(d3dx9_36 dxguid wine)
 add_importlibs(d3dx9_36 d3dcompiler_43 d3dxof user32 ole32 gdi32 msvcrt kernel32 ntdll)
 add_cd_file(TARGET d3dx9_36 DESTINATION reactos/system32 FOR all)
diff --git a/reactos/dll/directx/wine/d3dx9_36/math.c b/reactos/dll/directx/wine/d3dx9_36/math.c
index 72a75169c32..eebba94afc9 100644
--- a/reactos/dll/directx/wine/d3dx9_36/math.c
+++ b/reactos/dll/directx/wine/d3dx9_36/math.c
@@ -25,6 +25,8 @@
 #define NONAMELESSUNION
 
 #include <config.h>
+#include "wine/port.h"
+
 //#include "windef.h"
 //#include "wingdi.h"
 #include "d3dx9_36_private.h"