diff --git a/surveillance/filtrage_firewall.py b/surveillance/filtrage_firewall.py
index 80893918..937335b9 100755
--- a/surveillance/filtrage_firewall.py
+++ b/surveillance/filtrage_firewall.py
@@ -14,7 +14,6 @@ sys.path.append('/usr/scripts/gestion')
 import iptools
 from pyPgSQL import PgSQL
 import re
-from time import gmtime,strftime
 sys.path.append('/usr/script/surveillance')
 import strptime
 
diff --git a/surveillance/filtrage_netacct.py b/surveillance/filtrage_netacct.py
index 2631b2ce..2f339e4d 100755
--- a/surveillance/filtrage_netacct.py
+++ b/surveillance/filtrage_netacct.py
@@ -12,7 +12,7 @@ import sys
 sys.path.append('/usr/scripts/gestion')
 import iptools
 from pyPgSQL import PgSQL
-from time import gmtime,strftime,localtime
+from time import strftime, localtime
 sys.path.append('/usr/scripts/surveillance')
 import strptime, config