diff --git a/mitterlib/ui/helpers/gtk_threading.py b/mitterlib/ui/helpers/gtk_threading.py
index 0d0bfc9..08c803d 100644
--- a/mitterlib/ui/helpers/gtk_threading.py
+++ b/mitterlib/ui/helpers/gtk_threading.py
@@ -50,7 +50,7 @@ class _WorkerThread(threading.Thread, _IdleObject):
 
     def run(self):
         # call the function
-        _log.debug('Thread d %s calling %s', self.getName(),
+        _log.debug('Thread id %s calling %s()', self.getName(),
                 str(self._function.__name__))
 
         args = self._args