diff --git a/rally/plugins/workload/siege.py b/rally/plugins/workload/siege.py
index 9b245b74..e761bf39 100644
--- a/rally/plugins/workload/siege.py
+++ b/rally/plugins/workload/siege.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-#
 # All Rights Reserved.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
diff --git a/samples/tasks/support/instance_linpack.sh b/samples/tasks/support/instance_linpack.sh
old mode 100644
new mode 100755
diff --git a/samples/tasks/support/instance_test.sh b/samples/tasks/support/instance_test.sh
old mode 100644
new mode 100755