diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 5aa9d650512d..465604fdc5dd 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1219,7 +1219,8 @@ static int f2fs_check_quota_consistency(struct fs_context *fc,
 				goto err_jquota_change;
 
 			if (old_qname) {
-				if (strcmp(old_qname, new_qname) == 0) {
+				if (new_qname &&
+					strcmp(old_qname, new_qname) == 0) {
 					ctx->qname_mask &= ~(1 << i);
 					continue;
 				}