diff --git a/Base/utils.xml b/Base/utils.xml
index f5ca9cf..53d9da6 100644
--- a/Base/utils.xml
+++ b/Base/utils.xml
@@ -1,10 +1,10 @@
 <Base>
   <Group name="crans-common">
     <!-- Les paquets utiles pour l'utilisation de tous les jours -->
-    <Group name="debian-etch">
+    <Group name="debian-version=etch">
       <Package name="emacs21-nox"/>
     </Group>
-    <Group name="debian-etch" negate="true">
+    <Group name="debian-version=etch" negate="true">
       <Package name="emacs22-nox"/>
     </Group>
     <Package name="zsh"/>
diff --git a/Metadata/groups.xml b/Metadata/groups.xml
index d523cbe..816aa78 100644
--- a/Metadata/groups.xml
+++ b/Metadata/groups.xml
@@ -253,13 +253,13 @@
   <Group name="crans-etch" profile="true" public="true"
 	 comment="progile minimal pour etch">
     <Group name="crans-common"/>
-    <Group name="debian-etch"/>
+    <Group name="debian-version=etch"/>
   </Group>
 
   <Group name="crans-lenny" profile="true" public="true"
 	 comment="profile minimal pour lenny">
     <Group name="crans-common"/>
-    <Group name="debian-lenny"/>
+    <Group name="debian-version=lenny"/>
     <Group name="nss-ldapd"/>
   </Group>
 
diff --git a/Python/etc/apt/sources.list b/Python/etc/apt/sources.list
index 44a61ff..20e5e07 100644
--- a/Python/etc/apt/sources.list
+++ b/Python/etc/apt/sources.list
@@ -3,14 +3,28 @@
 include("mode/space")
 header()
 
+# Recherche de la distribution
+distros = [x.split("=", 1)[1] for x in metadata.groups if x.startswith("debian-version=")]
+if len(distros) == 0:
+    raise Exception("aucune distribution définie")
+elif len(distros) > 1:
+    raise Exception("plusieurs distrubutions définient")
+else:
+    [distro] = distros
+
+# Dépôt
+if has("debian-mirror"):
+    repo = "file:/mirror"
+else:
+    repo = "ftp://mirror.adm.crans.org"
+
 def source(args):
-    print "deb     %s%s" % (prefix, args)
-    print "deb-src %s%s" % (prefix, args)
+    print "deb     " + args
+    print "deb-src " + args
 
 if has("ovh"):
-    prefix = ""
-    source("ftp://mir1.ovh.net/debian/ etch main contrib")
-    source("http://security.debian.org/ etch/updates main")
+    source("ftp://mir1.ovh.net/debian/ %s main contrib" % distro)
+    source("http://security.debian.org/ %s/updates main" % distro)
 
     @# Paquet construit a la main
     source("ftp://mirror.adm.crans.org/custom ./")