diff --git a/include/winsock.h b/include/winsock.h
index 4509bfd944d..fe17ba08b03 100644
--- a/include/winsock.h
+++ b/include/winsock.h
@@ -65,6 +65,7 @@
 #  define timeval unix_timeval
 #  define select unix_select
 #  include <sys/types.h>
+#  include <sys/time.h>
 #  include <stdlib.h>
 #  undef fd_set
 #  undef timeval