diff --git a/src/emuvim/examples/son-monitor_default_topo.py b/src/emuvim/examples/son-monitor_default_topo.py
index 29893ae..a9649b2 100755
--- a/src/emuvim/examples/son-monitor_default_topo.py
+++ b/src/emuvim/examples/son-monitor_default_topo.py
@@ -79,7 +79,9 @@
     """
     7. At shutdown, we should receive th SIGTERM signal here and shutdown gracefully
     """
-    # TODO: investigate why this is not called by the sigterm handler
+    # TODO: investigate why this is not called by the sigterm handler, 
+    # probably because son-emu container is started with pid=host, so the started python script has not pid=0
+    # and docker stop only sends sigterm to pid=0
 
     global net
     global cli