--- openflow-2012-01-17.h	2015-07-23 09:54:16.884479351 -0700
+++ openflow-2012-02-29.h	2015-07-23 09:54:16.888479351 -0700
@@ -804,7 +804,7 @@
 
 /* IEEE 802.1ah I-SID.
  *
- * For a packet with an PBB header, this is the I-SID from the
+ * For a packet with a PBB header, this is the I-SID from the
  * outermost service tag.
  *
  * Prereqs: