diff --git a/app/models/user.rb b/app/models/user.rb
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -81,7 +81,7 @@
   end
 
   def admin?
-    self.roles.detect {|r| r.name == 'admin' }
+    self.roles.where(name: 'admin').count > 0
   end
 
   def email_for_editing