diff --git a/include/d3dx9effect.h b/include/d3dx9effect.h
index 79b635c19de..67d28b2fa15 100644
--- a/include/d3dx9effect.h
+++ b/include/d3dx9effect.h
@@ -140,9 +140,7 @@ DECLARE_INTERFACE_(ID3DXBaseEffect, IUnknown)
     STDMETHOD(GetString)(THIS_ D3DXHANDLE parameter, LPCSTR* string) PURE;
     STDMETHOD(SetTexture)(THIS_ D3DXHANDLE parameter, LPDIRECT3DBASETEXTURE9 texture) PURE;
     STDMETHOD(GetTexture)(THIS_ D3DXHANDLE parameter, LPDIRECT3DBASETEXTURE9* texture) PURE;
-    STDMETHOD(SetPixelShader)(THIS_ D3DXHANDLE parameter, LPDIRECT3DPIXELSHADER9 pshader) PURE;
     STDMETHOD(GetPixelShader)(THIS_ D3DXHANDLE parameter, LPDIRECT3DPIXELSHADER9* pshader) PURE;
-    STDMETHOD(SetVertexShader)(THIS_ D3DXHANDLE parameter, LPDIRECT3DVERTEXSHADER9 vshader) PURE;
     STDMETHOD(GetVertexShader)(THIS_ D3DXHANDLE parameter, LPDIRECT3DVERTEXSHADER9* vshader) PURE;
     STDMETHOD(SetArrayRange)(THIS_ D3DXHANDLE parameter, UINT start, UINT end) PURE;
 };