diff --git a/lib/tc.h b/lib/tc.h
index a472b998f63..61188dd43ec 100644
--- a/lib/tc.h
+++ b/lib/tc.h
@@ -18,10 +18,10 @@
 #ifndef TC_H
 #define TC_H 1
 
+#include <netinet/in.h> /* Must happen before linux/pkt_cls.h - Glibc #20215 */
 #include <linux/pkt_cls.h>
 #include <linux/pkt_sched.h>
 #include <linux/rtnetlink.h>
-#include <netinet/in.h>
 #include "lib/netlink-socket.h"
 #include "odp-netlink.h"
 #include "openvswitch/ofpbuf.h"