diff --git a/etc/heat/heat.conf.sample b/etc/heat/heat.conf.sample
index a81ec152b2..0ef55c60ff 100644
--- a/etc/heat/heat.conf.sample
+++ b/etc/heat/heat.conf.sample
@@ -996,6 +996,12 @@
 # value)
 #memcache_secret_key=<None>
 
+# (optional) indicate whether to set the X-Service-Catalog
+# header. If False, middleware will not ask for service
+# catalog on token validation and will not set the X-Service-
+# Catalog header. (boolean value)
+#include_service_catalog=true
+
 
 [matchmaker_redis]