diff --git a/dlls/d3d9/directx.c b/dlls/d3d9/directx.c
index 57039c5fafa..166bfc2b729 100644
--- a/dlls/d3d9/directx.c
+++ b/dlls/d3d9/directx.c
@@ -176,9 +176,9 @@ static HRESULT WINAPI IDirect3D9Impl_GetAdapterDisplayMode(LPDIRECT3D9EX iface,
     return hr;
 }
 
-static HRESULT WINAPI IDirect3D9Impl_CheckDeviceType(LPDIRECT3D9EX iface,
-					      UINT Adapter, D3DDEVTYPE CheckType, D3DFORMAT DisplayFormat,
-					      D3DFORMAT BackBufferFormat, BOOL Windowed) {
+static HRESULT WINAPI IDirect3D9Impl_CheckDeviceType(IDirect3D9Ex *iface, UINT Adapter,
+        D3DDEVTYPE CheckType, D3DFORMAT DisplayFormat, D3DFORMAT BackBufferFormat, BOOL Windowed)
+{
     IDirect3D9Impl *This = (IDirect3D9Impl *)iface;
     HRESULT hr;
     TRACE("(%p)->(%d, %d, %d, %d, %s\n", This, Adapter, CheckType, DisplayFormat,
@@ -191,9 +191,9 @@ static HRESULT WINAPI IDirect3D9Impl_CheckDeviceType(LPDIRECT3D9EX iface,
     return hr;
 }
 
-static HRESULT WINAPI IDirect3D9Impl_CheckDeviceFormat(LPDIRECT3D9EX iface,
-						  UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat,
-						  DWORD Usage, D3DRESOURCETYPE RType, D3DFORMAT CheckFormat) {
+static HRESULT WINAPI IDirect3D9Impl_CheckDeviceFormat(IDirect3D9Ex *iface, UINT Adapter, D3DDEVTYPE DeviceType,
+        D3DFORMAT AdapterFormat, DWORD Usage, D3DRESOURCETYPE RType, D3DFORMAT CheckFormat)
+{
     IDirect3D9Impl *This = (IDirect3D9Impl *)iface;
     HRESULT hr;
     WINED3DRESOURCETYPE WineD3DRType;
@@ -229,9 +229,10 @@ static HRESULT WINAPI IDirect3D9Impl_CheckDeviceFormat(LPDIRECT3D9EX iface,
     return hr;
 }
 
-static HRESULT WINAPI IDirect3D9Impl_CheckDeviceMultiSampleType(LPDIRECT3D9EX iface,
-							   UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT SurfaceFormat,
-							   BOOL Windowed, D3DMULTISAMPLE_TYPE MultiSampleType, DWORD* pQualityLevels) {
+static HRESULT WINAPI IDirect3D9Impl_CheckDeviceMultiSampleType(IDirect3D9Ex *iface, UINT Adapter,
+        D3DDEVTYPE DeviceType, D3DFORMAT SurfaceFormat, BOOL Windowed, D3DMULTISAMPLE_TYPE MultiSampleType,
+        DWORD *pQualityLevels)
+{
     IDirect3D9Impl *This = (IDirect3D9Impl *)iface;
     HRESULT hr;
     TRACE("%p\n", This);
@@ -243,9 +244,9 @@ static HRESULT WINAPI IDirect3D9Impl_CheckDeviceMultiSampleType(LPDIRECT3D9EX if
     return hr;
 }
 
-static HRESULT WINAPI IDirect3D9Impl_CheckDepthStencilMatch(LPDIRECT3D9EX iface,
-						       UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat,
-						       D3DFORMAT RenderTargetFormat, D3DFORMAT DepthStencilFormat) {
+static HRESULT WINAPI IDirect3D9Impl_CheckDepthStencilMatch(IDirect3D9Ex *iface, UINT Adapter,
+        D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat, D3DFORMAT RenderTargetFormat, D3DFORMAT DepthStencilFormat)
+{
     IDirect3D9Impl *This = (IDirect3D9Impl *)iface;
     HRESULT hr;
     TRACE("%p\n", This);
diff --git a/dlls/d3d9/tests/device.c b/dlls/d3d9/tests/device.c
index f56e05e7139..8b578fda56d 100644
--- a/dlls/d3d9/tests/device.c
+++ b/dlls/d3d9/tests/device.c
@@ -388,7 +388,7 @@ static void test_refcount(void)
 
     D3DVERTEXELEMENT9 decl[] =
     {
-	D3DDECL_END()
+        D3DDECL_END()
     };
     static DWORD simple_ps[] = {0xFFFF0101,                                     /* ps_1_1                       */
         0x00000051, 0xA00F0001, 0x3F800000, 0x00000000, 0x00000000, 0x00000000, /* def c1 = 1.0, 0.0, 0.0, 0.0  */
@@ -1830,14 +1830,14 @@ static void test_null_stream(void)
     hr = IDirect3DDevice9_CreateVertexDeclaration(device, decl_elements, &decl);
     ok(SUCCEEDED(hr), "IDirect3DDevice9_CreateVertexDeclaration failed (0x%08x)\n", hr);
     if (FAILED(hr)) {
-	skip("Vertex declaration handling not possible.\n");
-	goto cleanup;
+        skip("Vertex declaration handling not possible.\n");
+        goto cleanup;
     }
     hr = IDirect3DDevice9_CreateVertexBuffer(device, 12 * sizeof(float), 0, 0, D3DPOOL_MANAGED, &buffer, NULL);
     ok(SUCCEEDED(hr), "IDirect3DDevice9_CreateVertexBuffer failed (0x%08x)\n", hr);
     if (FAILED(hr)) {
-	skip("Vertex buffer handling not possible.\n");
-	goto cleanup;
+        skip("Vertex buffer handling not possible.\n");
+        goto cleanup;
     }
 
     hr = IDirect3DDevice9_SetStreamSource(device, 0, buffer, 0, sizeof(float) * 3);