diff --git a/src/iTunesLibrary/ITCompat.cs b/src/iTunesLibrary/ITCompat.cs
index 35abfd5a2fee..6045b8cc699c 100644
--- a/src/iTunesLibrary/ITCompat.cs
+++ b/src/iTunesLibrary/ITCompat.cs
@@ -1,3 +1,5 @@
+#nullable enable
+
 using System;
 
 namespace iTunesLibrary