diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 8ee1db866e8004c95d9e7bbb038aff5f7daf2f84..2fabd8c4fd88f37367837a6df3a2431373244923 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -31,6 +31,8 @@
 #include <drm/drm_mode.h>
 #include <drm/drm_plane_helper.h>
 
+#include "drm_crtc_internal.h"
+
 /**
  * drm_atomic_state_default_release -
  * release memory initialized by drm_atomic_state_init