diff --git a/REST API.md b/REST API.md
index 88584dd..b9e432d 100644
--- a/REST API.md	
+++ b/REST API.md	
@@ -5,7 +5,8 @@ POST http://localhost:1730/api/download/
 Content-Type: application/json
 
 {
-    "url": "https://www.deezer.com/album/115542362"
+    "url": "https://www.deezer.com/album/115542362",
+    "quality": "flac" //OPTIONAL
 }
     or
 {
@@ -17,8 +18,12 @@ or
 
 ``` http
 GET http://localhost:1730/api/download/?url=https://www.deezer.com/album/115542362
+or
+GET http://localhost:1730/api/download/?url=https://www.deezer.com/album/115542362&quality=flac
 ```
 
+quality variable accepts lossless,flac or 320,mp3 or 128, and is case insensitive (also accepts FLAC and lOsSlEsS, etc.)
+
 ## Search for a track, album, playlist or artist
 ``` JSON
 POST http://localhost:1730/api/search/