diff --git a/tests/baselines/reference/defaultExportsCannotMerge01.js b/tests/baselines/reference/defaultExportsCannotMerge01.js
index 3e0a61d54d..99b8ecab1d 100644
--- a/tests/baselines/reference/defaultExportsCannotMerge01.js
+++ b/tests/baselines/reference/defaultExportsCannotMerge01.js
@@ -34,6 +34,7 @@ Entity.y;
 function Decl() {
     return 0;
 }
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = Decl;
 var Decl;
 (function (Decl) {
diff --git a/tests/baselines/reference/defaultExportsCannotMerge02.js b/tests/baselines/reference/defaultExportsCannotMerge02.js
index 72a8e3c5f1..e3897395c7 100644
--- a/tests/baselines/reference/defaultExportsCannotMerge02.js
+++ b/tests/baselines/reference/defaultExportsCannotMerge02.js
@@ -31,6 +31,7 @@ var Decl = (function () {
     }
     return Decl;
 })();
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = Decl;
 //// [m2.js]
 var m1_1 = require("m1");
diff --git a/tests/baselines/reference/multipleDefaultExports01.js b/tests/baselines/reference/multipleDefaultExports01.js
index 8faf33388c..e633cf69f5 100644
--- a/tests/baselines/reference/multipleDefaultExports01.js
+++ b/tests/baselines/reference/multipleDefaultExports01.js
@@ -24,11 +24,14 @@ var foo = (function () {
     }
     return foo;
 })();
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = foo;
 function bar() {
 }
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = bar;
 var x = 10;
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = x;
 //// [m2.js]
 var m1_1 = require("m1");
diff --git a/tests/baselines/reference/multipleDefaultExports02.js b/tests/baselines/reference/multipleDefaultExports02.js
index faec7c9d2b..3d1b84ff6a 100644
--- a/tests/baselines/reference/multipleDefaultExports02.js
+++ b/tests/baselines/reference/multipleDefaultExports02.js
@@ -18,9 +18,11 @@ Entity();
 //// [m1.js]
 function foo() {
 }
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = foo;
 function bar() {
 }
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.default = bar;
 //// [m2.js]
 var m1_1 = require("m1");