diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
index ab16570f7e5b10fa5d1c6b1c92609e353e11a4b2..8492ca65fcbcf9792f53742e3a76a6281028d097 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
@@ -112,7 +112,7 @@
       "interface": "InfiniBand",
       "ip": "172.18.54.1",
       "kavlan": false,
-      "mac": "00:00:10:86:fe:80:00:00:00:00:00:00:b8:59:9f:03:00:d1:f7:05",
+      "mac": "00:00:10:86:fe:80:00:00:00:00:00:00:b8:59:9f:03:00:d1:f6:f6",
       "management": false,
       "model": "MT28908 Family [ConnectX-6]",
       "mountable": true,
diff --git a/input/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.yaml b/input/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.yaml
index 28837451f11116d48f727cc0157051ed58b65672..b3415b6119fa69cd63642308e86ef6a28d75a98d 100644
--- a/input/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.yaml
+++ b/input/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.yaml
@@ -49,7 +49,7 @@ pyxis-1:
       guid: '0xb8599f0300d1f706'
       interface: InfiniBand
       ip: 172.18.54.1
-      mac: 00:00:10:86:fe:80:00:00:00:00:00:00:b8:59:9f:03:00:d1:f7:05
+      mac: 00:00:10:86:fe:80:00:00:00:00:00:00:b8:59:9f:03:00:d1:f6:f6
       management: false
       model: MT28908 Family [ConnectX-6]
       name: ib0