diff --git a/dlls/d3dx9_36/mesh.c b/dlls/d3dx9_36/mesh.c
index 788c449baf6..cc22107fab7 100644
--- a/dlls/d3dx9_36/mesh.c
+++ b/dlls/d3dx9_36/mesh.c
@@ -203,7 +203,7 @@ HRESULT WINAPI D3DXDeclaratorFromFVF(DWORD fvf, D3DVERTEXELEMENT9 Declaration[MA
 /*************************************************************************
  * D3DXFVFFromDeclarator
  */
-HRESULT WINAPI D3DXFVFFromDeclarator(const LPD3DVERTEXELEMENT9 *declaration, DWORD *fvf)
+HRESULT WINAPI D3DXFVFFromDeclarator(const D3DVERTEXELEMENT9 *declaration, DWORD *fvf)
 {
     FIXME("(%p, %p): stub\n", declaration, fvf);
 
diff --git a/dlls/d3dx9_36/tests/mesh.c b/dlls/d3dx9_36/tests/mesh.c
index 8d0f227e7ef..4cdd56b1160 100644
--- a/dlls/d3dx9_36/tests/mesh.c
+++ b/dlls/d3dx9_36/tests/mesh.c
@@ -491,7 +491,7 @@ static void test_decl_to_fvf(const D3DVERTEXELEMENT9 test_decl[], DWORD expected
 
     copy_elements(decl, test_decl);
 
-    hr = D3DXFVFFromDeclarator((D3DVERTEXELEMENT9 **)&decl, &result_fvf);
+    hr = D3DXFVFFromDeclarator(decl, &result_fvf);
     if (todo) todo_wine ok(hr == expected_hr, "D3DXFVFFromDeclarator returned %#x, expected %#x, line #%u\n",
                            hr, expected_hr, line);
     else ok(hr == expected_hr, "D3DXFVFFromDeclarator returned %#x, expected %#x, line #%u\n",
diff --git a/include/d3dx9mesh.h b/include/d3dx9mesh.h
index ff215b74c70..bc3dd81aa8c 100644
--- a/include/d3dx9mesh.h
+++ b/include/d3dx9mesh.h
@@ -159,7 +159,7 @@ BOOL    WINAPI D3DXSphereBoundProbe(CONST D3DXVECTOR3 *,FLOAT,CONST D3DXVECTOR3
 HRESULT WINAPI D3DXComputeBoundingBox(CONST D3DXVECTOR3 *, DWORD, DWORD, D3DXVECTOR3 *, D3DXVECTOR3 *);
 HRESULT WINAPI D3DXComputeBoundingSphere(CONST D3DXVECTOR3 *, DWORD, DWORD, D3DXVECTOR3 *, FLOAT *);
 HRESULT WINAPI D3DXDeclaratorFromFVF(DWORD, D3DVERTEXELEMENT9[MAX_FVF_DECL_SIZE]);
-HRESULT WINAPI D3DXFVFFromDeclarator(const LPD3DVERTEXELEMENT9 *, DWORD *);
+HRESULT WINAPI D3DXFVFFromDeclarator(const D3DVERTEXELEMENT9 *decl, DWORD *fvf);
 BOOL    WINAPI D3DXIntersectTri(CONST D3DXVECTOR3 *, CONST D3DXVECTOR3 *, CONST D3DXVECTOR3 *, CONST D3DXVECTOR3 *, CONST D3DXVECTOR3*, FLOAT *, FLOAT *, FLOAT *);
 
 #ifdef __cplusplus