diff --git a/tools/stack_decode.py b/tools/stack_decode.py
index 3e3c7bd87e7a..b303ff50d9d9 100755
--- a/tools/stack_decode.py
+++ b/tools/stack_decode.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 
 # Call addr2line as needed to resolve addresses in a stack trace. The addresses
 # will be replaced if they can be resolved into file and line numbers. The