diff --git a/src/System.Management.Automation/engine/Modules/ModuleIntrinsics.cs b/src/System.Management.Automation/engine/Modules/ModuleIntrinsics.cs
index 71f86332861..d81f1385e27 100644
--- a/src/System.Management.Automation/engine/Modules/ModuleIntrinsics.cs
+++ b/src/System.Management.Automation/engine/Modules/ModuleIntrinsics.cs
@@ -1719,6 +1719,7 @@ internal enum ModuleMatchFailure
     /// Used by Modules/Snapins to provide a hook to the engine for startup initialization
     /// w.r.t compiled assembly loading.
     /// </summary>
+#nullable enable
     public interface IModuleAssemblyInitializer
     {
         /// <summary>