diff --git a/app/helpers/admin/injection_helper.rb b/app/helpers/admin/injection_helper.rb
index cd90f930f3..ccc5b7a184 100644
--- a/app/helpers/admin/injection_helper.rb
+++ b/app/helpers/admin/injection_helper.rb
@@ -187,7 +187,7 @@ module Admin
     def admin_inject_available_units
       admin_inject_json "admin.products",
                         "availableUnits",
-                        "#{Spree::Config.available_units}"
+                        Spree::Config.available_units
     end
 
     def admin_inject_json(ng_module, name, data)