diff --git a/Bugsnag/Assets/Bugsnag/Runtime/Payload/Session.cs b/Bugsnag/Assets/Bugsnag/Runtime/Payload/Session.cs
index 32b25665e..4c3317cc9 100644
--- a/Bugsnag/Assets/Bugsnag/Runtime/Payload/Session.cs
+++ b/Bugsnag/Assets/Bugsnag/Runtime/Payload/Session.cs
@@ -29,7 +29,7 @@ public DateTimeOffset? StartedAt
 
         internal User? User { get; set; }
 
-        public IUser GetUser() => User;
+        public IUser? GetUser() => User;
 
         public void SetUser(string id, string email, string name)
         {