diff --git a/packages/babel-core/test/fixtures/transformation/source-maps/inline/expected.js b/packages/babel-core/test/fixtures/transformation/source-maps/inline/expected.js
index 00ae47b8755d..991056b8bf3a 100644
--- a/packages/babel-core/test/fixtures/transformation/source-maps/inline/expected.js
+++ b/packages/babel-core/test/fixtures/transformation/source-maps/inline/expected.js
@@ -1,4 +1,4 @@
 arr.map(function (x) {
   return x * x;
 });
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNvdXJjZS1tYXBzL2lubGluZS9hY3R1YWwuanMiXSwibmFtZXMiOlsiYXJyIiwibWFwIiwieCJdLCJtYXBwaW5ncyI6IkFBQUFBLElBQUlDLEdBQUosQ0FBUTtBQUFBLFNBQUtDLElBQUlBLENBQVQ7QUFBQSxDQUFSIiwiZmlsZSI6InNvdXJjZS1tYXBzL2lubGluZS9leHBlY3RlZC5qcyIsInNvdXJjZXNDb250ZW50IjpbImFyci5tYXAoeCA9PiB4ICogeCk7Il19
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInNvdXJjZS1tYXBzL2lubGluZS9hY3R1YWwuanMiXSwibmFtZXMiOlsiYXJyIiwibWFwIiwieCJdLCJtYXBwaW5ncyI6IkFBQUFBLElBQUlDLEdBQUosQ0FBUTtBQUFBLFNBQUtDLElBQUlBLENBQVQ7QUFBQSxDQUFSIiwiZmlsZSI6InNvdXJjZS1tYXBzL2lubGluZS9leHBlY3RlZC5qcyIsInNvdXJjZXNDb250ZW50IjpbImFyci5tYXAoeCA9PiB4ICogeCk7Il19