diff --git a/poky/meta/files/ext-sdk-prepare.py b/poky/meta/files/ext-sdk-prepare.py
index 96c5212..163d5e9 100644
--- a/poky/meta/files/ext-sdk-prepare.py
+++ b/poky/meta/files/ext-sdk-prepare.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Prepare the build system within the extensible SDK