diff --git a/gfx/d3d/render_chain_xdk.cpp b/gfx/d3d/render_chain_xdk.cpp
index c04eb41bf3..9960e9a302 100644
--- a/gfx/d3d/render_chain_xdk.cpp
+++ b/gfx/d3d/render_chain_xdk.cpp
@@ -21,6 +21,18 @@
 typedef struct xdk_renderchain
 {
    void *empty;
+   unsigned pixel_size;
+   LPDIRECT3DTEXTURE tex;
+   LPDIRECT3DVERTEXBUFFER vertex_buf;
+   unsigned last_width;
+   unsigned last_height;
+#ifdef HAVE_D3D9
+   LPDIRECT3DVERTEXDECLARATION vertex_decl;
+#else
+   void *vertex_decl;
+#endif
+   unsigned tex_w;
+   unsigned tex_h;
 } xdk_renderchain_t;
 
 static void renderchain_set_mvp(void *data, unsigned vp_width,