diff --git a/src/System.Management.Automation/engine/ErrorPackage.cs b/src/System.Management.Automation/engine/ErrorPackage.cs
index 4d1627dff93..0dbc237c4b7 100644
--- a/src/System.Management.Automation/engine/ErrorPackage.cs
+++ b/src/System.Management.Automation/engine/ErrorPackage.cs
@@ -1810,6 +1810,7 @@ public interface IContainsErrorRecord
     /// since the improved
     /// information about the error may help enable future scenarios.
     /// </remarks>
+#nullable enable
     public interface IResourceSupplier
     {
         /// <summary>