diff --git a/tests/baselines/reference/visibilityOfCrossModuleTypeUsage.js b/tests/baselines/reference/visibilityOfCrossModuleTypeUsage.js
index cd654006403..c80d65158dc 100644
--- a/tests/baselines/reference/visibilityOfCrossModuleTypeUsage.js
+++ b/tests/baselines/reference/visibilityOfCrossModuleTypeUsage.js
@@ -26,6 +26,7 @@ function run(configuration: commands.IConfiguration) {
 }
 
 //// [visibilityOfCrossModuleTypeUsage_server.js]
+"use strict";
 //// [visibilityOfCrossModuleTypeUsage_commands.js]
 //visibilityOfCrossModuleTypeUsage
 "use strict";