diff --git a/reactos/dll/directx/ddraw/main/ddraw_main.c b/reactos/dll/directx/ddraw/main/ddraw_main.c
index fa9aa2526fc..7f1b2f10108 100644
--- a/reactos/dll/directx/ddraw/main/ddraw_main.c
+++ b/reactos/dll/directx/ddraw/main/ddraw_main.c
@@ -305,6 +305,11 @@ HRESULT WINAPI Main_DirectDraw_CreateSurface (LPDIRECTDRAW7 iface, LPDDSURFACEDE
     /* setup DDSD */
     if  (pDDSD->dwFlags & DDSD_PIXELFORMAT)
     {
+        if (pDDSD->ddpfPixelFormat.dwSize != sizeof(DDPIXELFORMAT))
+        {
+            /* FIXME relase the memory that we have alloc */
+            return DDERR_INVALIDPIXELFORMAT;
+        }
         That->lpLcl->dwFlags |= DDRAWISURF_HASPIXELFORMAT;
         memcpy(&That->lpLcl->lpGbl->ddpfSurface,&pDDSD->ddpfPixelFormat, sizeof(DDPIXELFORMAT));
     }