diff --git a/gestion/gen_confs/generate.py b/gestion/gen_confs/generate.py
index a8c22828..8f511eca 100755
--- a/gestion/gen_confs/generate.py
+++ b/gestion/gen_confs/generate.py
@@ -265,11 +265,13 @@ To: %(To)s
 Subject: Modifications sur une machine du CR@NS
 
 %(Texte)s"""
-		machine = db.search('ipHostNumber=%s' % ip)['machine'][0]
-                conn=smtplib.SMTP(smtpserv)
-                conn.sendmail(From, To , base_txt_mail % { 'From' : From, 'To' : To, 'Texte' : machine_details(machine).encode('iso8859-15')  })
-                conn.quit()
-                print OK
+		machine = db.search('ipHostNumber=%s' % ip)['machine']
+                if len(machine):
+                    machine = machine[0]
+                    conn=smtplib.SMTP(smtpserv)
+                    conn.sendmail(From, To , base_txt_mail % { 'From' : From, 'To' : To, 'Texte' : machine_details(machine).encode('iso8859-15')  })
+                    conn.quit()
+                    print OK
             except Exception, c:
                 print ERREUR
 		if auto : db.services_to_restart('mail_modification_machine',[ip])