diff --git a/input/grid5000/sites/lyon/clusters/orion/orion.yaml b/input/grid5000/sites/lyon/clusters/orion/orion.yaml
index c5ee8480918ac28cd407433d22e18f6f7e9a3601..6580ec2a92529859900554265a6516b932643998 100644
--- a/input/grid5000/sites/lyon/clusters/orion/orion.yaml
+++ b/input/grid5000/sites/lyon/clusters/orion/orion.yaml
@@ -31,6 +31,7 @@ nodes:
         power_default_limit: 225.00 W
         vbios_version: 70.10.46.00.05
         vendor: Nvidia
+        reservation: false
     network_adapters:
       eth0:
         enabled: true