diff --git a/lib/blame.js b/lib/blame.js
index 77f3ad9a3..7893d0c87 100644
--- a/lib/blame.js
+++ b/lib/blame.js
@@ -7,6 +7,7 @@ var _file = Blame.file;
 /**
  * Retrieve the blame of a file
  *
+ * @async
  * @param {Repository} repo that contains the file
  * @param {String} path to the file to get the blame of
  * @param {BlameOptions} [options] Options for the blame