diff --git a/dlls/d3d8/d3d8_main.c b/dlls/d3d8/d3d8_main.c
index 2b6ada42620..8ac704c364c 100644
--- a/dlls/d3d8/d3d8_main.c
+++ b/dlls/d3d8/d3d8_main.c
@@ -56,15 +56,6 @@ IDirect3D8 * WINAPI DECLSPEC_HOTPATCH Direct3DCreate8(UINT sdk_version)
     return &object->IDirect3D8_iface;
 }
 
-/* At process attach */
-BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, void *reserved)
-{
-    if (reason == DLL_PROCESS_ATTACH)
-        DisableThreadLibraryCalls(inst);
-
-    return TRUE;
-}
-
 /***********************************************************************
  *              ValidateVertexShader (D3D8.@)
  *