diff --git a/run_p2pool.py b/run_p2pool.py
old mode 100644
new mode 100755
index 366cb09e4..3b6524e09
--- a/run_p2pool.py
+++ b/run_p2pool.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 from p2pool import main
 
 main.run()