diff --git a/testsuite/config-guess.sh b/testsuite/config-guess.sh
index bae38d7..1b5b2ea 100644
--- a/testsuite/config-guess.sh
+++ b/testsuite/config-guess.sh
@@ -1,4 +1,7 @@
-# Copyright 2004, 2005, 2009, 2012, 2015, 2018 Free Software Foundation, Inc.
+#!/bin/bash
+#
+# Copyright 2004, 2005, 2009, 2012, 2015, 2018 Free Software
+# Foundation, Inc.
 # Contributed by Ben Elliston <bje@gnu.org>.
 #
 # This test reads 5-tuples from config-guess.data: the components of
diff --git a/testsuite/config-sub.sh b/testsuite/config-sub.sh
index 74388fa..c5b09f6 100644
--- a/testsuite/config-sub.sh
+++ b/testsuite/config-sub.sh
@@ -1,4 +1,7 @@
-# Copyright 2004, 2005, 2009, 2014, 2018 Free Software Foundation, Inc.
+#!/bin/bash
+#
+# Copyright 2004, 2005, 2009, 2014, 2018 Free Software Foundation,
+# Inc.
 # Contributed by Ben Elliston <bje@gnu.org>.
 #
 # This test reads pairs from config-sub.data: an alias and its