diff --git a/Microsoft.Toolkit.Uwp/Helpers/ObjectStorage/ApplicationDataStorageHelper.cs b/Microsoft.Toolkit.Uwp/Helpers/ObjectStorage/ApplicationDataStorageHelper.cs
index 0b16553e91b..ed487ec2cae 100644
--- a/Microsoft.Toolkit.Uwp/Helpers/ObjectStorage/ApplicationDataStorageHelper.cs
+++ b/Microsoft.Toolkit.Uwp/Helpers/ObjectStorage/ApplicationDataStorageHelper.cs
@@ -10,6 +10,8 @@
 using Windows.Storage;
 using Windows.System;
 
+#nullable enable
+
 namespace Microsoft.Toolkit.Uwp.Helpers
 {
     /// <summary>