diff --git a/frontends/src/quick_frontend/quick_contact_list.py b/frontends/src/quick_frontend/quick_contact_list.py
index 947fb9b4..f3d89bd7 100644
--- a/frontends/src/quick_frontend/quick_contact_list.py
+++ b/frontends/src/quick_frontend/quick_contact_list.py
@@ -512,7 +512,7 @@ class QuickContactList(QuickWidget):
         self.update()
 
     def showResources(self, show):
-        show = C.bool(show)
+        assert isinstance(show, bool)
         if self.show_resources == show:
             return
         self.show_resources = show