diff --git a/printing/templates.py b/printing/templates.py
index f636071..e869e85 100644
--- a/printing/templates.py
+++ b/printing/templates.py
@@ -71,6 +71,21 @@ def telephone(l):
             tel.append(t)
     return tel
 
+_ethercodes = None
+def const_of_mac(mac):
+    global _ethercodes
+    if not _ethercodes:
+        _ethercodes = dict()
+        with open('/usr/scripts/gestion/ethercodes.dat', 'r') as f:
+            # Évite de mettre en RAM tout de suite, on utilise un itérateur
+            for line in iter(f.readline, ''):
+                line = line.split('\t\t')
+                _ethercodes[line[0][0:8].lower()] = line[-1].strip()
+    try:
+        return mac + u" (%s)" % _ethercodes[mac[0:8]]
+    except KeyError:
+        return mac
+
 templateEnv=None
 def template():
     global templateEnv
@@ -87,6 +102,7 @@ def template():
         templateEnv.filters['timeformat'] = timeformat
         templateEnv.filters['split'] = split
         templateEnv.filters['telephone'] = telephone
+        templateEnv.filters['const_of_mac'] = const_of_mac
         templateEnv.filters['tableau'] = tableau
     return templateEnv
 
diff --git a/printing/templates/machine b/printing/templates/machine
index 18e6855..eb35287 100644
--- a/printing/templates/machine
+++ b/printing/templates/machine
@@ -2,7 +2,7 @@
 {% if o.hostAlias %}
 {{"Alias : "|coul('gras')}}{{o.hostAlias|join(', ')}}
 {% endif %}
-{{"MAC  : "|coul('gras')}}{{o.macAddress|join(', ')}}
+{{"MAC  : "|coul('gras')}}{{o.macAddress|join(', ')|const_of_mac}}
 {{"IPv4 : "|coul('gras')}}{{o.ipHostNumber|join(', ')}}
 {{"IPv6 : "|coul('gras')}}{{o.ip6HostNumber|join(', ')}}
 {{"DnsIpv6 : "|coul('gras')}}{% if not o.dnsIpv6 or o.dnsIpv6.0.value %}