diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index 6619d2ac6fa3..684692a8ed76 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -26,6 +26,7 @@
 
 #include <drm/spsc_queue.h>
 #include <linux/dma-fence.h>
+#include <linux/completion.h>
 
 #define MAX_WAIT_SCHED_ENTITY_Q_EMPTY msecs_to_jiffies(1000)