diff --git a/Lib/threading.py b/Lib/threading.py
index b7b7023..f2d28f4 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -537,6 +537,7 @@
                 # assert that it's dead.
                 # XXX Temporary experiment
                 # self.__exc_clear()
+                pass
         finally:
             with _active_limbo_lock:
                 self.__stop()