diff --git a/enqueue/dbal/0.4/manifest.json b/enqueue/dbal/0.4/manifest.json
new file mode 100644
index 00000000..221ba501
--- /dev/null
+++ b/enqueue/dbal/0.4/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "mysql://"
+    }
+}