diff --git a/drivers/rkflash/rkflash_blk.c b/drivers/rkflash/rkflash_blk.c
index 53539a97f2ba..11296c185282 100644
--- a/drivers/rkflash/rkflash_blk.c
+++ b/drivers/rkflash/rkflash_blk.c
@@ -20,6 +20,7 @@
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
 #include <linux/semaphore.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>