diff --git a/tests/baselines/reference/packageJsonMain.js b/tests/baselines/reference/packageJsonMain.js
index c7f63af27f2..96509ab639e 100644
--- a/tests/baselines/reference/packageJsonMain.js
+++ b/tests/baselines/reference/packageJsonMain.js
@@ -28,6 +28,7 @@ foo + bar + baz;
 
 //// [a.js]
 "use strict";
+exports.__esModule = true;
 var foo = require("foo");
 var bar = require("bar");
 var baz = require("baz");
diff --git a/tests/baselines/reference/packageJsonMain_isNonRecursive.js b/tests/baselines/reference/packageJsonMain_isNonRecursive.js
index edd56b359ee..97d7bbdf05b 100644
--- a/tests/baselines/reference/packageJsonMain_isNonRecursive.js
+++ b/tests/baselines/reference/packageJsonMain_isNonRecursive.js
@@ -16,3 +16,4 @@ import foo = require("foo");
 
 //// [a.js]
 "use strict";
+exports.__esModule = true;
diff --git a/tests/baselines/reference/typingsLookup4.js b/tests/baselines/reference/typingsLookup4.js
index b3bb2ed5ded..d2424644d16 100644
--- a/tests/baselines/reference/typingsLookup4.js
+++ b/tests/baselines/reference/typingsLookup4.js
@@ -38,6 +38,7 @@ exports.__esModule = true;
 exports.l = 2;
 //// [index.js]
 "use strict";
+exports.__esModule = true;
 exports.m = 3;
 //// [a.js]
 "use strict";