--- openflow-2015-01-13.h	2015-07-23 09:54:18.096479401 -0700
+++ openflow-2015-01-20.h	2015-07-23 09:54:18.104479401 -0700
@@ -2459,7 +2459,7 @@
     OFPMP_QUEUE_DESC = 15,
 
     /* Flow monitors. Reply may be an asynchronous message.
-     * The request body is struct ofp_flow_monitor_request.
+     * The request body is an array of struct ofp_flow_monitor_request.
      * The reply body is an array of struct ofp_flow_update_header. */
     OFPMP_FLOW_MONITOR = 16,