diff --git a/test/SimpleImpersonation.UnitTests/ImpersonationTests.cs b/test/SimpleImpersonation.UnitTests/ImpersonationTests.cs
index 2fee367..6de56c1 100644
--- a/test/SimpleImpersonation.UnitTests/ImpersonationTests.cs
+++ b/test/SimpleImpersonation.UnitTests/ImpersonationTests.cs
@@ -3,7 +3,8 @@
 
 namespace SimpleImpersonation.UnitTests
 {
-    // TODO: user@domain form, test all functions, warn if not elevated
+    // NOTE: Unit tests for this project must be executed as an administrator,
+    //       because they create a temporary user for testing successful impersonation.
 
     public class ImpersonationTests : IClassFixture<UserPrincipalFixture>
     {