diff --git a/runtags b/runtags
index f5992b8f9..933d07a67 100755
--- a/runtags
+++ b/runtags
@@ -25,8 +25,9 @@ tags=$(echo $1 | tr "," "\n")
 if [ "$tags" == "" ]
 then
   echo " usage: ./runtags <tagname>"
-  echo " Can take a single value or a comma separated list."
-  echo " Now retrieving a list of possible values..."
+  echo " usage: ./runtags <tagname1>,<tagname2>,<tagname3>"
+  echo " Can take a single value or a comma-separated list (no spaces within the list!)"
+  echo " Now retrieving a list of possible Ansible playbook and tagname values..."
   ansible-playbook -i ansible_hosts iiab.yml --connection=local --list-tag
   exit 0
 fi