diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 9adc202fcd6f76ca4e0f0b16d5b4aedd6e2e4e9c..71191d89917d8c1aa78dcedc36a71307a878d96b 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -11,6 +11,7 @@
  */
 #include <linux/proc_fs.h>
 #include <linux/f2fs_fs.h>
+#include <linux/seq_file.h>
 
 #include "f2fs.h"
 #include "segment.h"