diff --git a/gestion/annuaires_pg.py b/gestion/annuaires_pg.py
index 0c6c81f0..3ed82640 100644
--- a/gestion/annuaires_pg.py
+++ b/gestion/annuaires_pg.py
@@ -42,7 +42,8 @@ def _need_conn(f):
             # backend pgsql. On utilise donc une exception plus standard
     return first_connect
 
-bat_switchs = ["a", "b", "c", "g", "h", "i", "j", "m", "o", "p"]
+# Le v est virtuel.
+bat_switchs = ["a", "b", "c", "g", "h", "i", "j", "m", "o", "p", "v"]
 
 class ChbreNotFound(ValueError):
     """Lorsqu'une chambre n'existe pas"""
diff --git a/gestion/config/config.py b/gestion/config/config.py
index 12aca656..9fc98ee8 100644
--- a/gestion/config/config.py
+++ b/gestion/config/config.py
@@ -451,3 +451,7 @@ accueil_route = {
 }
 
 dhcp_servers = ['dhcp.adm.crans.org', 'isc.adm.crans.org']
+
+# Le bâtiment virtuel dans lequel on place des chambres qui n'existent pas, pour faire
+# des tests.
+bat_virtuel = 'v'
diff --git a/gestion/whos.py b/gestion/whos.py
index 07ece5d4..435c1f8f 100755
--- a/gestion/whos.py
+++ b/gestion/whos.py
@@ -613,7 +613,12 @@ def adher_details(adher) :
         f += coul(u'Chambre invalide\n','violet')
     else :
         # Chambre + prise (d'après annuaire)
-        etat, vlans, cablage = prise_etat(adher.chbre())
+        if adher.chbre()[0].lower() != config.bat_virtuel:
+            etat, vlans, cablage = prise_etat(adher.chbre())
+        else:
+            etat = coul(u"Chambre virtuelle", "violet")
+            vlans = ""
+            cablage = coul(u"Factice", "violet")
         f += coul(u'Chambre : ','gras') + u"%s " % chbre
         f += u'(%s)' % etat
         f += u'\n'