diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
index bccb33b900f3..272a3ba46d60 100644
--- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
 #include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_kunit_helpers.h>
 #include <drm/drm_managed.h>
@@ -13,6 +14,8 @@
 #define KUNIT_DEVICE_NAME	"drm-kunit-mock-device"
 
 static const struct drm_mode_config_funcs drm_mode_config_funcs = {
+	.atomic_check	= drm_atomic_helper_check,
+	.atomic_commit	= drm_atomic_helper_commit,
 };
 
 static int fake_probe(struct platform_device *pdev)