diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ea819386b8647..603d740f0f1c5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5022,7 +5022,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
 			}
 			flush_dcache_page(page);
 		} else if (create && PageUptodate(page)) {
-			WARN_ON(1);
+			BUG();
 			if (!trans) {
 				kunmap(page);
 				free_extent_map(em);