diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 871fe4b4e..15879c416 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -277,6 +277,7 @@ static loff_t fat_lseek(struct device_d *dev, FILE *f, loff_t pos)
 	if (ret)
 		return ret;
 
+	f->pos = pos;
 	return pos;
 }