diff --git a/app/models/package.rb b/app/models/package.rb
index 620495f86..1323cc762 100644
--- a/app/models/package.rb
+++ b/app/models/package.rb
@@ -435,7 +435,7 @@ returns
       file = File.new(location, 'wb')
       file.write(data)
       file.close
-      File.chmod(permission.to_i(8), location)
+      File.chmod(permission.to_s.to_i(8), location)
     rescue => e
       raise 'ERROR: ' + e.inspect
     end