diff --git a/tailbone/views/users.py b/tailbone/views/users.py
index 157f42ee..52064346 100644
--- a/tailbone/views/users.py
+++ b/tailbone/views/users.py
@@ -135,6 +135,10 @@ class UserView(PrincipalMasterView):
         g.set_link('last_name')
         g.set_link('display_name')
 
+    def grid_extra_class(self, user, i):
+        if not user.active:
+            return 'warning'
+
     def editable_instance(self, user):
         """
         If the given user is "protected" then we only allow edit if current