diff --git a/examples/network/http_server_simplistic.py b/examples/network/http_server_simplistic.py
index f932e48f56..67ecb1ad7a 100644
--- a/examples/network/http_server_simplistic.py
+++ b/examples/network/http_server_simplistic.py
@@ -1,3 +1,5 @@
+# Do not use this code in real projects! Read
+# http_server_simplistic_commented.py for details.
 try:
     import usocket as socket
 except: