diff --git a/lib/generators/sorcery/templates/migration/core.rb b/lib/generators/sorcery/templates/migration/core.rb
index af5f721c..0c701d5c 100644
--- a/lib/generators/sorcery/templates/migration/core.rb
+++ b/lib/generators/sorcery/templates/migration/core.rb
@@ -1,7 +1,8 @@
 class SorceryCore < <%= migration_class_name %>
   def change
     create_table :<%= model_class_name.tableize %> do |t|
-      t.string :email,            :null => false
+      t.string :email
+      t.string :username
       t.string :crypted_password
       t.string :salt