diff --git a/test/common/autotest_common.sh b/test/common/autotest_common.sh
old mode 100644
new mode 100755
index 59c3681d0..04df69409
--- a/test/common/autotest_common.sh
+++ b/test/common/autotest_common.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 function xtrace_disable() {
 	if [ "$XTRACE_DISABLED" != "yes" ]; then
 		PREV_BASH_OPTS="$-"