diff --git a/ckan/lib/helpers.py b/ckan/lib/helpers.py
index 91556fa5d7a..c63abe9e887 100644
--- a/ckan/lib/helpers.py
+++ b/ckan/lib/helpers.py
@@ -774,7 +774,7 @@ def dict_list_reduce(list_, key, unique=True):
 def linked_gravatar(email_hash, size=100, default=None):
     return literal(
         '<a href="https://gravatar.com/" target="_blank" ' +
-        'title="%s">' % _('Update your avatar at gravatar.com') +
+        'title="%s" alt="">' % _('Update your avatar at gravatar.com') +
         '%s</a>' % gravatar(email_hash, size, default)
     )