diff --git a/test/fixtures/transformation/source-maps/options.json b/test/fixtures/transformation/source-maps/options.json
new file mode 100644
index 0000000000..7d6e6cda1c
--- /dev/null
+++ b/test/fixtures/transformation/source-maps/options.json
@@ -0,0 +1,3 @@
+{
+  "externalHelpers": true
+}