diff --git a/gajim/gtk/util.py b/gajim/gtk/util.py
index c3ab6f29f..c6eefe232 100644
--- a/gajim/gtk/util.py
+++ b/gajim/gtk/util.py
@@ -180,7 +180,7 @@ def get_builder(file_name: str, widgets: List[str] = None) -> Builder:
     return Builder(file_name, widgets)
 
 
-def set_urgency_hint(window: Any, setting: bool):
+def set_urgency_hint(window: Any, setting: bool) -> None:
     if app.config.get('use_urgency_hint'):
         window.set_urgency_hint(setting)
 
diff --git a/gajim/privatechat_control.py b/gajim/privatechat_control.py
index 2d1c695ab..4a831009a 100644
--- a/gajim/privatechat_control.py
+++ b/gajim/privatechat_control.py
@@ -24,8 +24,6 @@
 # You should have received a copy of the GNU General Public License
 # along with Gajim. If not, see <http://www.gnu.org/licenses/>.
 
-import nbxmpp
-
 from gajim import message_control
 
 from gajim.common import app