diff --git a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c b/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
index ec9b2fe2b8a..8d8ef923f7a 100644
--- a/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_h323_pxy.c
@@ -9,6 +9,7 @@
  * authorized by a written license agreement from QSSL. For more information,
  * please email licensing@qnx.com.
  *
+ * For more details, see QNX_OCL.txt provided with this distribution.
  */
 
 /*