diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 3680b2784ea1..ed65d2b13964 100644
--- a/drivers/thunderbolt/debugfs.c
+++ b/drivers/thunderbolt/debugfs.c
@@ -9,6 +9,7 @@
 
 #include <linux/debugfs.h>
 #include <linux/pm_runtime.h>
+#include <linux/uaccess.h>
 
 #include "tb.h"