add a hint
diff --git a/ui/js/coffee/warble_clientlist.coffee b/ui/js/coffee/warble_clientlist.coffee
index 3963afc..053dd0e 100644
--- a/ui/js/coffee/warble_clientlist.coffee
+++ b/ui/js/coffee/warble_clientlist.coffee
@@ -188,7 +188,7 @@
             line = new HTML('div', {class: 'clientcardline'})
             line.inject( [
                 new HTML('b', {}, "Fingerprint: "),
-                new HTML('kbd', {}, source.fingerprint)
+                new HTML('kbd', {title: "Run node.py --fingerprint if you need to re-check the fingerprint"}, source.fingerprint)
             ])
             d.inject(line)