diff --git a/calsocial/account.py b/calsocial/account.py
index 87d9cde..bebf8cc 100644
--- a/calsocial/account.py
+++ b/calsocial/account.py
@@ -230,6 +230,8 @@ class AccountBlueprint(Blueprint, RoutedMixin):
             flash(_('Can’t invalidate your current session'))
         else:
             current_app.session_interface.delete_session(sid)
-            current_user.active_sessions = [sess_id for sess_id in current_user.active_sessions if sess_id != sid]
+            current_user.active_sessions = [sess_id
+                                            for sess_id in current_user.active_sessions
+                                            if sess_id != sid]
 
         return redirect(url_for('account.active_sessions'))