diff --git a/xdo_build.py b/xdo_build.py
old mode 100644
new mode 100755
index 30d1391..b541ad8
--- a/xdo_build.py
+++ b/xdo_build.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 from cffi import FFI
 
 ffibuilder = FFI()
diff --git a/xdo_test.py b/xdo_test.py
old mode 100644
new mode 100755
index 59b8c11..59f5781
--- a/xdo_test.py
+++ b/xdo_test.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import time
 
 from _xdo_cffi import ffi, lib