diff --git a/README b/README
index dc60daa..4f1d0f6 100644
--- a/README
+++ b/README
@@ -251,6 +251,9 @@ vicious.widgets.gmail
   - keeps login information in the ~/.netrc file, example:
     machine mail.google.com login user password pass
   - returns a table with string keys: {count} and {subject}
+  - to be able to use this widget, make sure in your Gmail account
+    you disabled "two step verification" (https://support.google.com/accounts/answer/1064203)
+    and then "allowed access to your account for less secure apps" (https://www.google.com/settings/security/lesssecureapps)
 
 vicious.widgets.org
   - provides agenda statistics for Emacs org-mode