diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 5aae3432e16e064accfd8de0af8ce36600b5e0b3..7db89d7f59c135571b8024cfb74a0b35600daaa3 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.7
+#!/usr/bin/env python
 # Copyright 2015, Google Inc.
 # All rights reserved.
 #