diff --git a/test/fixtures/syntax/modules-amd/options.json b/test/fixtures/syntax/modules-amd/options.json
new file mode 100644
index 0000000000..b76b119f33
--- /dev/null
+++ b/test/fixtures/syntax/modules-amd/options.json
@@ -0,0 +1,3 @@
+{
+  "modules": "amd"
+}
diff --git a/test/fixtures/syntax/modules-umd/options.json b/test/fixtures/syntax/modules-umd/options.json
new file mode 100644
index 0000000000..1683480119
--- /dev/null
+++ b/test/fixtures/syntax/modules-umd/options.json
@@ -0,0 +1,3 @@
+{
+  "modules": "umd"
+}