diff --git a/hbc b/hbc
index 97d9300..cb30a60 100755
--- a/hbc
+++ b/hbc
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # $Id: hbc,v 1.9 2012/03/29 02:08:36 andreas Exp $
 # NEW
 import sys
diff --git a/hbd b/hbd
index 1bc1396..ee526db 100755
--- a/hbd
+++ b/hbd
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # $Id: hbd,v 1.38 2013/07/14 02:25:05 andreas Exp $
 # Wait for heartbeat messages and act on them (or their absence)
 #