diff --git a/dll/directx/wine/d3d9/d3d9_private.h b/dll/directx/wine/d3d9/d3d9_private.h
index ba19e5fb08f..094707a0d16 100644
--- a/dll/directx/wine/d3d9/d3d9_private.h
+++ b/dll/directx/wine/d3d9/d3d9_private.h
@@ -47,8 +47,6 @@
 
 #define D3D9_TEXTURE_MIPMAP_DIRTY 0x1
 
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
-
 extern const struct wined3d_parent_ops d3d9_null_wined3d_parent_ops DECLSPEC_HIDDEN;
 
 HRESULT vdecl_convert_fvf(DWORD FVF, D3DVERTEXELEMENT9 **ppVertexElements) DECLSPEC_HIDDEN;
diff --git a/dll/directx/wine/ddraw/ddraw_private.h b/dll/directx/wine/ddraw/ddraw_private.h
index 1454e8012a4..cac38c57e92 100644
--- a/dll/directx/wine/ddraw/ddraw_private.h
+++ b/dll/directx/wine/ddraw/ddraw_private.h
@@ -39,8 +39,6 @@
 #include "wine/list.h"
 #include "wine/wined3d.h"
 
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
-
 extern const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops DECLSPEC_HIDDEN;
 extern DWORD force_refresh_rate DECLSPEC_HIDDEN;