diff --git a/lib/tree.js b/lib/tree.js
index 0ece24abc..1be687075 100644
--- a/lib/tree.js
+++ b/lib/tree.js
@@ -100,7 +100,7 @@ Tree.prototype.entryByName = function(name) {
 /**
  * Get an entry at a path. Unlike by name, this takes a fully
  * qualified path, like `/foo/bar/baz.javascript`
- *
+ * @async
  * @param {String} filePath
  * @return {TreeEntry}
  */