diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 0ac6e159bdc6..aeafa67bfe99 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -611,7 +611,7 @@ static ssize_t ceph_sync_write(struct file *file, const char __user *data,
 		pos += len;
 		written += len;
 		left -= len;
-		data += written;
+		data += len;
 		if (left)
 			goto more;