diff --git a/tests/check_drm_clients b/tests/check_drm_clients
index fed00cd5..eb12416a 100755
--- a/tests/check_drm_clients
+++ b/tests/check_drm_clients
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 . $SOURCE_DIR/drm_lib.sh
diff --git a/tests/debugfs_emon_crash b/tests/debugfs_emon_crash
index 0f6c0a65..1ce3d02c 100755
--- a/tests/debugfs_emon_crash
+++ b/tests/debugfs_emon_crash
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # This check if we can crash the kernel with segmentation-fault
 # by reading /sys/kernel/debug/dri/0/i915_emon_status too quickly
diff --git a/tests/debugfs_reader b/tests/debugfs_reader
index c17af2bb..80d59988 100755
--- a/tests/debugfs_reader
+++ b/tests/debugfs_reader
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 . $SOURCE_DIR/drm_lib.sh