diff --git a/API.md b/API.md
index 9cc8b05..99b1e58 100644
--- a/API.md
+++ b/API.md
@@ -196,7 +196,8 @@ Returns annotation XML from YouTube's `/annotations_invideo` endpoint. Alternati
 Parameters:
 
 ```
-source: "youtube", "reddit"
+sort_by: "top", "new" (default: top)
+source: "youtube", "reddit" (default: youtube)
 continuation: String
 ```