diff --git a/spec.json b/spec.json
index d054e0b..ef81780 100644
--- a/spec.json
+++ b/spec.json
@@ -1,6 +1,7 @@
 {
 	"enabled": 1,
 	"hidden": false,
+	"type": "legacy",
 	"description": "Jobset desription",
 	"nixexprinput": "src",
 	"nixexprpath": "default.nix",