diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
index f40971eee810a88656d64c310ee91b897217b9d1..08252c7e93062c6529ecb136aecf06611845bc65 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
@@ -129,7 +129,7 @@
       "interface": "Ethernet",
       "ip": "172.17.76.64",
       "kavlan": false,
-      "mac": "50:9a:4c:84:51:10",
+      "mac": "6c:2b:59:7a:76:3c",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/input/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.yaml b/input/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.yaml
index 696f1291ee70049abcb4bd4fc0c8cab229f0870a..c18a97d07c5826d2a0e5bbb97f27cb7811cc71de 100644
--- a/input/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.yaml
+++ b/input/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.yaml
@@ -21,7 +21,7 @@ grvingt-64:
   network_adapters:
     bmc:
       ip: 172.17.76.64
-      mac: 50:9a:4c:84:51:10
+      mac: 6c:2b:59:7a:76:3c
       management: true
     eth0:
       driver: i40e