diff --git a/tests/ymls/extends/web.yml b/tests/ymls/extends/web.yml
new file mode 100644
index 0000000..1452125
--- /dev/null
+++ b/tests/ymls/extends/web.yml
@@ -0,0 +1,5 @@
+version: "3.9"
+
+services:
+  web:
+    image: awesome/web
\ No newline at end of file