diff --git a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
index 52b402420e650d7d3f8768b840fc06e2e27d69bd..41e7e81362135f8a7f0124549a2cfa79c3c3673b 100644
--- a/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
+++ b/data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json
@@ -272,7 +272,7 @@
       "interface": "Ethernet",
       "ip": "172.17.79.1",
       "kavlan": false,
-      "mac": "70:b5:e8:cf:5c:b6",
+      "mac": "70:b5:e8:e8:e6:d2",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/input/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.yaml b/input/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.yaml
index 7462fd2081c01a80d490245f9f44904e2cb37e72..7ade544fece85edf0eebe32809bdc19fea7b682e 100644
--- a/input/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.yaml
+++ b/input/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.yaml
@@ -87,7 +87,7 @@ grouille-1:
   network_adapters:
     bmc:
       ip: 172.17.79.1
-      mac: 70:b5:e8:cf:5c:b6
+      mac: 70:b5:e8:e8:e6:d2
       management: true
     eth0:
       driver: tg3