diff --git a/regress/arm_movr12_hang.py b/regress/arm_movr12_hang.py
old mode 100644
new mode 100755
index 1ff403c4..6f065882
--- a/regress/arm_movr12_hang.py
+++ b/regress/arm_movr12_hang.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 from unicorn import *
 uc = Uc(UC_ARCH_ARM, UC_MODE_ARM)
 uc.mem_map(0x1000, 0x1000)