--- openflow-2013-04-03.h	2015-07-23 09:54:17.456479375 -0700
+++ openflow-2012-10-09-4.h	2015-07-23 09:54:17.460479375 -0700
@@ -1691,6 +1691,7 @@
     OFPFMFC_BAD_COMMAND  = 6,   /* Unsupported or unknown command. */
     OFPFMFC_BAD_FLAGS    = 7,   /* Unsupported or unknown flags. */
     OFPFMFC_CANT_SYNC    = 8,   /* Problem in table synchronisation. */
+    OFPFMFC_BAD_PRIORITY = 9,   /* Unsupported priority value. */
 };
 
 /* ofp_error_msg 'code' values for OFPET_GROUP_MOD_FAILED.  'data' contains