diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f9192dcb9208..2cd17e4d2464 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3095,7 +3095,7 @@ struct extent_map *btrfs_get_chunk_map(struct btrfs_fs_info *fs_info,
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (em->start > logical || em->start + em->len < logical) {
+	if (em->start > logical || em->start + em->len <= logical) {
 		btrfs_crit(fs_info,
 			   "found a bad mapping, wanted %llu-%llu, found %llu-%llu",
 			   logical, length, em->start, em->start + em->len);