diff --git a/bin/nostr-agent-demo.py b/bin/nostr-agent-demo.py
index 6aa9c2d7..de51028e 100755
--- a/bin/nostr-agent-demo.py
+++ b/bin/nostr-agent-demo.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """
 Full Nostr agent-to-agent communication demo - FINAL WORKING
 """