diff --git a/data/grid5000/sites/rennes/clusters/abacus15/nodes/abacus15-1.json b/data/grid5000/sites/rennes/clusters/abacus15/nodes/abacus15-1.json
index be1e3771e99af98ff761854eee3ac745b4bb03d2..834a9fb1b678e7065e68efb62f459664003b62d9 100644
--- a/data/grid5000/sites/rennes/clusters/abacus15/nodes/abacus15-1.json
+++ b/data/grid5000/sites/rennes/clusters/abacus15/nodes/abacus15-1.json
@@ -278,6 +278,7 @@
   "supported_job_types": {
     "besteffort": true,
     "deploy": true,
+    "max_walltime": 604800,
     "queues": [
       "testing",
       "admin"
diff --git a/input/grid5000/sites/rennes/clusters/abacus15/abacus15.yaml b/input/grid5000/sites/rennes/clusters/abacus15/abacus15.yaml
index 5994d82bb911ce5143c36a2684f8356764415528..56167afc58d5f5cda8a5f06ddf5fc6cd51fdfefd 100644
--- a/input/grid5000/sites/rennes/clusters/abacus15/abacus15.yaml
+++ b/input/grid5000/sites/rennes/clusters/abacus15/abacus15.yaml
@@ -11,6 +11,7 @@ nodes:
     supported_job_types:
       deploy: true
       besteffort: true
+      max_walltime: 604800
     processor:
       microarchitecture: Zen 3
       clock_speed: 2650000000