diff --git a/db/migrate/20170421101901_dmsf_file_container_rollback.rb b/db/migrate/20170421101901_dmsf_file_container_rollback.rb
index 90f308b4..2f1a832a 100644
--- a/db/migrate/20170421101901_dmsf_file_container_rollback.rb
+++ b/db/migrate/20170421101901_dmsf_file_container_rollback.rb
@@ -69,7 +69,7 @@ class DmsfFileContainerRollback < ActiveRecord::Migration
 
   def down
     # dmsf_files
-    file_folder_ids = DmsfFile.joins(:dmsf_folder).where(:dmsf_folders => { :system => true }).pluck('dmsf_files.id, cast(dmsf_folders.title as int)')
+    file_folder_ids = DmsfFile.joins(:dmsf_folder).where(:dmsf_folders => { :system => true }).pluck('dmsf_files.id, cast(dmsf_folders.title as decimal)')
     remove_index :dmsf_files, :project_id
     rename_column :dmsf_files, :project_id, :container_id
     add_column :dmsf_files, :project_id, :int, :null => true # temporarily added for the save method