diff --git a/src/AppInstallerCLIE2ETests/ConfigureCommand.cs b/src/AppInstallerCLIE2ETests/ConfigureCommand.cs
index 8e2a58b39f..ae8a2b0a90 100644
--- a/src/AppInstallerCLIE2ETests/ConfigureCommand.cs
+++ b/src/AppInstallerCLIE2ETests/ConfigureCommand.cs
@@ -93,6 +93,7 @@ public void ConfigureFromTestRepo_DefaultModuleRootSetting()
             bool moduleExists = Directory.Exists(Path.Combine(moduleTestDir, Constants.SimpleTestModuleName));
             if (moduleExists)
             {
+                // Clean test directory to avoid impacting other tests.
                 Directory.Delete(moduleTestDir, true);
             }