diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index 3d0195822..f4335a249 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -13,7 +13,6 @@ details. */
 #include <unistd.h>
 #include <stdlib.h>
 #include "winsup.h"
-#include "sync.h"
 
 static NO_COPY const int CHUNK_SIZE = 1024; /* Used for crlf conversions */