diff --git a/lib/rspotify/user.rb b/lib/rspotify/user.rb
index 0f4ef779..48a8854b 100644
--- a/lib/rspotify/user.rb
+++ b/lib/rspotify/user.rb
@@ -317,8 +317,8 @@ def remove_tracks!(tracks)
     def save_tracks!(tracks)
       tracks_ids = tracks.map(&:id)
       url = "me/tracks"
-      request_body = tracks_ids.inspect
-      User.oauth_put(@id, url, request_body)
+      request_body = { ids: tracks_ids }
+      User.oauth_put(@id, url, request_body.to_json)
       tracks
     end