diff --git a/src/common/helpers.py b/src/common/helpers.py
index b5578ffa5..9ef95bb61 100644
--- a/src/common/helpers.py
+++ b/src/common/helpers.py
@@ -29,6 +29,7 @@
 ## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
 ##
 
+import sys
 import re
 import locale
 import os