diff --git a/db/migrate/20140503000001_update_storage3.rb b/db/migrate/20140503000001_update_storage3.rb
index 35461e874..4893a226b 100644
--- a/db/migrate/20140503000001_update_storage3.rb
+++ b/db/migrate/20140503000001_update_storage3.rb
@@ -7,11 +7,6 @@ class UpdateStorage3 < ActiveRecord::Migration
     add_column  :store_provider_dbs, :sha,    :string,  :limit => 128, :null => true
     add_index   :store_provider_dbs, [:sha],  :unique => true
 
-    Store::File.all.each {|file|
-      next if file.sha
-      sha = Digest::SHA256.hexdigest( file.content )
-      file.update_attribute( :sha, sha )
-    }
     Store::File.all.each {|file|
       next if file.sha
       sha = Digest::SHA256.hexdigest( file.content )