diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index d525957594b6..af1921454ce8 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -561,7 +561,7 @@ static ssize_t caches_show(struct kobject *kobj,
 	spin_lock(&v9fs_sessionlist_lock);
 	list_for_each_entry(v9ses, &v9fs_sessionlist, slist) {
 		if (v9ses->cachetag) {
-			n = snprintf(buf, limit, "%s\n", v9ses->cachetag);
+			n = snprintf(buf + count, limit, "%s\n", v9ses->cachetag);
 			if (n < 0) {
 				count = n;
 				break;