diff --git a/db/migrate/20150522134437_set_position_field_nullable.rb b/db/migrate/20150522134437_set_position_field_nullable.rb
new file mode 100644
index 0000000..4cc75c7
--- /dev/null
+++ b/db/migrate/20150522134437_set_position_field_nullable.rb
@@ -0,0 +1,5 @@
+class SetPositionFieldNullable < ActiveRecord::Migration
+  def change
+    change_column :custom_workflows, :position, :integer, :null => true
+  end
+end