diff --git a/regress/sparc_reg.py b/regress/sparc_reg.py
old mode 100644
new mode 100755
index c969189f..0857d671
--- a/regress/sparc_reg.py
+++ b/regress/sparc_reg.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 from unicorn import *
 from unicorn.sparc_const import *