diff --git a/doc/concept.sh b/doc/concept.sh
index 4309725..2cb9e2a 100644
--- a/doc/concept.sh
+++ b/doc/concept.sh
@@ -155,7 +155,7 @@ drw|draw|echo "bla" "bli" "blub"
 # print "blabliblub", await user response (until newline/enter) and return entered line as $1
 ask $1 "bla" "bli" "blub"
 
-# pretty print the value stored in $1
+# pretty print the value stored in $1 with log-level 'debug'
 deb|debug $1