diff --git a/data/grid5000/sites/nancy/clusters/griffon/nodes/griffon-61.json b/data/grid5000/sites/nancy/clusters/griffon/nodes/griffon-61.json
index 0b59a6463f56c3bb7b1c098dfa4dbc69ec5ba2dd..c3b68a0162f577dcc340a435f124456054de2343 100644
--- a/data/grid5000/sites/nancy/clusters/griffon/nodes/griffon-61.json
+++ b/data/grid5000/sites/nancy/clusters/griffon/nodes/griffon-61.json
@@ -69,7 +69,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.17.65.61",
-      "mac": "00:E0:81:4F:E2:F2",
+      "mac": "00:E0:81:4B:FC:D2",
       "management": true,
       "mountable": false,
       "mounted": false,
diff --git a/generators/input/nancy-griffon.yaml b/generators/input/nancy-griffon.yaml
index b66494790064255c91fe5a75ecc5ec5ae0a80ae6..b86c45940a5109cf197734d9b50cbf02edd3228a 100644
--- a/generators/input/nancy-griffon.yaml
+++ b/generators/input/nancy-griffon.yaml
@@ -1702,7 +1702,7 @@ griffon-61:
   ip_eth1: ""
   switch_ipmi_pos: "1/0/4"
   ip_ib: 172.18.65.61
-  mac_ipmi: 00:E0:81:4F:E2:F2
+  mac_ipmi: 00:E0:81:4B:FC:D2
   bios_ver: V1.05
   bios_release: 08/21/2009
   guidib0: 20:00:55:00:41:80:00:00:00:00:00:00:00:02:c9:03:00:03:18:05