diff --git a/example-dns-01-nsupdate-script.md b/example-dns-01-nsupdate-script.md
index c1af657..3bca000 100644
--- a/example-dns-01-nsupdate-script.md
+++ b/example-dns-01-nsupdate-script.md
@@ -39,9 +39,6 @@ case "$1" in
     "exit_hook")
         # do nothing for now
         ;;
-    *)
-        echo "Warning: Unknown hook '$1'"
-        ;;
 esac
 
 exit 0