diff --git a/src/Microsoft.Framework.Localization/LocalizationServiceCollectionExtensions.cs b/src/Microsoft.Framework.Localization/LocalizationServiceCollectionExtensions.cs
index fe6f4694f2..f81c13afb4 100644
--- a/src/Microsoft.Framework.Localization/LocalizationServiceCollectionExtensions.cs
+++ b/src/Microsoft.Framework.Localization/LocalizationServiceCollectionExtensions.cs
@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved. 
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. 
 
+using Microsoft.Framework.DependencyInjection.Extensions;
 using Microsoft.Framework.Internal;
 using Microsoft.Framework.Localization;