diff --git a/dlls/d3d9/tests/visual.c b/dlls/d3d9/tests/visual.c
index b1916c436f3..4d65649ce8c 100644
--- a/dlls/d3d9/tests/visual.c
+++ b/dlls/d3d9/tests/visual.c
@@ -129,12 +129,16 @@ struct surface_readback
 static void get_rt_readback(IDirect3DSurface9 *surface, struct surface_readback *rb)
 {
     IDirect3DDevice9 *device;
+    D3DSURFACE_DESC desc;
     HRESULT hr;
 
     memset(rb, 0, sizeof(*rb));
-    IDirect3DSurface9_GetDevice(surface, &device);
-    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, 640, 480,
-            D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &rb->surface, NULL);
+    hr = IDirect3DSurface9_GetDevice(surface, &device);
+    ok(SUCCEEDED(hr), "Failed to get device, hr %#x.\n", hr);
+    hr = IDirect3DSurface9_GetDesc(surface, &desc);
+    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
+    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, desc.Width, desc.Height,
+            desc.Format, D3DPOOL_SYSTEMMEM, &rb->surface, NULL);
     if (FAILED(hr) || !rb->surface)
     {
         trace("Can't create an offscreen plain surface to read the render target data, hr %#x.\n", hr);