diff --git a/cleanup.py b/cleanup.py
index bad6139886f4fd5a6313d4e5e8e5be2102669875..bb6c8fce301da29104ac4e8f79725f7d66504635 100644
--- a/cleanup.py
+++ b/cleanup.py
@@ -1,4 +1,4 @@
-#!usr/bin/env python3
+#!/usr/bin/env python3
 
 """
 This script deletes build working directories older than the given maximum age.