diff --git a/uasyncio.core/example_call_soon.py b/uasyncio.core/example_call_soon.py
index f58fdbd2..7379144f 100644
--- a/uasyncio.core/example_call_soon.py
+++ b/uasyncio.core/example_call_soon.py
@@ -1,5 +1,8 @@
 import uasyncio.core as asyncio
 import time
+import logging
+logging.basicConfig(level=logging.DEBUG)
+#asyncio.set_debug(True)
 
 
 def cb():