diff --git a/hydra/artiq.json b/hydra/artiq.json
index de9f010..e55e176 100644
--- a/hydra/artiq.json
+++ b/hydra/artiq.json
@@ -145,7 +145,7 @@
         "type": 1,
         "hidden": false,
         "description": "Third generation ARTIQ compiler",
-        "flake": { "type": "git", "url": "https://git.m-labs.hk/M-Labs/nac3.git" },
+        "flake": "git+https://git.m-labs.hk/M-Labs/nac3.git",
         "checkinterval": 300,
         "schedulingshares": 10,
         "enableemail": false,