diff --git a/data/grid5000/sites/nancy/servers/srv-data2.json b/data/grid5000/sites/nancy/servers/srv-data2.json
index 2e24143dbe4ffbc21dcc2ceb3490d0746869081b..7f25348cd06006a8cbf354237a3aeb157d9507a0 100644
--- a/data/grid5000/sites/nancy/servers/srv-data2.json
+++ b/data/grid5000/sites/nancy/servers/srv-data2.json
@@ -12,7 +12,7 @@
     },
     "default": {
       "ip": "172.16.79.17",
-      "mac": "4C:D9:8F:6B:D5:66",
+      "mac": "F8:F2:1E:69:64:A0",
       "mounted": false
     }
   },
diff --git a/input/grid5000/sites/nancy/servers/servers.yaml b/input/grid5000/sites/nancy/servers/servers.yaml
index 50815b2d10ea6b513094bd604f8286d6a52ddfaf..ba44cf7d9dc064441ef26fd89c63a3956cf015f0 100644
--- a/input/grid5000/sites/nancy/servers/servers.yaml
+++ b/input/grid5000/sites/nancy/servers/servers.yaml
@@ -68,7 +68,7 @@ srv-data2:
   network_adapters:
     default:
       mounted: false
-      mac: 4C:D9:8F:6B:D5:66
+      mac: F8:F2:1E:69:64:A0
       ip: 172.16.79.17
     bmc:
       mounted: true