1 files changed, 1 insertions, 1 deletions
diff --git a/lib/parse/findParsableFile.js b/lib/parse/findParsableFile.js
index 4434d64..51e2dd0 100644
--- a/lib/parse/findParsableFile.js
+++ b/lib/parse/findParsableFile.js
@@ -8,7 +8,7 @@ var parsers = require('../parsers');
 
     @param {Book} book
     @param {String} filename
-    @return {Promise<>}
+    @return {Promise<File | Undefined>}
 */
 function findParsableFile(book, filename) {
     var fs = book.getContentFS();