diff --git a/system_wrappers/source/cpu_info.cc b/system_wrappers/source/cpu_info.cc
index 0bfe01582f..5374efb759 100644
--- a/system_wrappers/source/cpu_info.cc
+++ b/system_wrappers/source/cpu_info.cc
@@ -13,9 +13,6 @@
 #if defined(WEBRTC_WIN)
 #include <windows.h>
 #include <winsock2.h>
-#ifndef EXCLUDE_D3D9
-#include <d3d9.h>
-#endif
 #elif defined(WEBRTC_LINUX)
 #include <unistd.h>
 #endif