diff --git a/src/fd.hpp b/src/fd.hpp
index b7f7ad6a..5b3afe85 100644
--- a/src/fd.hpp
+++ b/src/fd.hpp
@@ -31,7 +31,7 @@
 #define __ZMQ_FD_HPP_INCLUDED__
 
 #if defined _WIN32
-#include <windows.hpp>
+#include "windows.hpp"
 #endif
 
 namespace zmq