diff --git a/include/d3d.h b/include/d3d.h
index c478a047d68..fa6179fa46e 100644
--- a/include/d3d.h
+++ b/include/d3d.h
@@ -658,7 +658,7 @@ DECLARE_INTERFACE_(IDirect3DViewport,IUnknown)
     STDMETHOD(TransformVertices)(THIS_ DWORD dwVertexCount, LPD3DTRANSFORMDATA lpData, DWORD dwFlags, LPDWORD lpOffScreen) PURE;
     STDMETHOD(LightElements)(THIS_ DWORD dwElementCount, LPD3DLIGHTDATA lpData) PURE;
     STDMETHOD(SetBackground)(THIS_ D3DMATERIALHANDLE hMat) PURE;
-    STDMETHOD(GetBackground)(THIS_ LPD3DMATERIALHANDLE lphMat, LPBOOL lpValid) PURE;
+    STDMETHOD(GetBackground)(THIS_ D3DMATERIALHANDLE *material, BOOL *valid) PURE;
     STDMETHOD(SetBackgroundDepth)(THIS_ IDirectDrawSurface *surface) PURE;
     STDMETHOD(GetBackgroundDepth)(THIS_ IDirectDrawSurface **surface, BOOL *valid) PURE;
     STDMETHOD(Clear)(THIS_ DWORD dwCount, LPD3DRECT lpRects, DWORD dwFlags) PURE;
@@ -726,7 +726,7 @@ DECLARE_INTERFACE_(IDirect3DViewport2,IDirect3DViewport)
     STDMETHOD(TransformVertices)(THIS_ DWORD dwVertexCount, LPD3DTRANSFORMDATA lpData, DWORD dwFlags, LPDWORD lpOffScreen) PURE;
     STDMETHOD(LightElements)(THIS_ DWORD dwElementCount, LPD3DLIGHTDATA lpData) PURE;
     STDMETHOD(SetBackground)(THIS_ D3DMATERIALHANDLE hMat) PURE;
-    STDMETHOD(GetBackground)(THIS_ LPD3DMATERIALHANDLE lphMat, LPBOOL lpValid) PURE;
+    STDMETHOD(GetBackground)(THIS_ D3DMATERIALHANDLE *material, BOOL *valid) PURE;
     STDMETHOD(SetBackgroundDepth)(THIS_ IDirectDrawSurface *surface) PURE;
     STDMETHOD(GetBackgroundDepth)(THIS_ IDirectDrawSurface **surface, BOOL *valid) PURE;
     STDMETHOD(Clear)(THIS_ DWORD dwCount, LPD3DRECT lpRects, DWORD dwFlags) PURE;
@@ -802,7 +802,7 @@ DECLARE_INTERFACE_(IDirect3DViewport3,IDirect3DViewport2)
     STDMETHOD(TransformVertices)(THIS_ DWORD dwVertexCount, LPD3DTRANSFORMDATA lpData, DWORD dwFlags, LPDWORD lpOffScreen) PURE;
     STDMETHOD(LightElements)(THIS_ DWORD dwElementCount, LPD3DLIGHTDATA lpData) PURE;
     STDMETHOD(SetBackground)(THIS_ D3DMATERIALHANDLE hMat) PURE;
-    STDMETHOD(GetBackground)(THIS_ LPD3DMATERIALHANDLE lphMat, LPBOOL lpValid) PURE;
+    STDMETHOD(GetBackground)(THIS_ D3DMATERIALHANDLE *material, BOOL *valid) PURE;
     STDMETHOD(SetBackgroundDepth)(THIS_ IDirectDrawSurface *surface) PURE;
     STDMETHOD(GetBackgroundDepth)(THIS_ IDirectDrawSurface **surface, BOOL *valid) PURE;
     STDMETHOD(Clear)(THIS_ DWORD dwCount, LPD3DRECT lpRects, DWORD dwFlags) PURE;