diff --git a/src/d3d/d3d.cpp b/src/d3d/d3d.cpp
index f14c317..e5c9aa8 100644
--- a/src/d3d/d3d.cpp
+++ b/src/d3d/d3d.cpp
@@ -602,7 +602,7 @@ rasterLock(Raster *raster, int32 level, int32 lockMode)
 			tex->GetSurfaceLevel(level, &rt);
 		D3DSURFACE_DESC desc;
 		rt->GetDesc(&desc);
-		HRESULT res = d3ddevice->CreateOffscreenPlainSurface(desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &rt, nil);
+		HRESULT res = d3ddevice->CreateOffscreenPlainSurface(desc.Width, desc.Height, desc.Format, D3DPOOL_SYSTEMMEM, &surf, nil);
 		if(res != D3D_OK)
 			return nil;
 		d3ddevice->GetRenderTargetData(rt, surf);