diff --git a/tests/mklargefile.py b/tests/mklargefile.py
index 11ea7ed..ee7a603 100644
--- a/tests/mklargefile.py
+++ b/tests/mklargefile.py
@@ -1,4 +1,4 @@
-#! /usr/bin/python
+#! /usr/bin/env python
 import sys
 
 if __name__ == '__main__':