diff --git a/lib/oauth2/response.ex b/lib/oauth2/response.ex
index 7a5d3d4..5073a6a 100644
--- a/lib/oauth2/response.ex
+++ b/lib/oauth2/response.ex
@@ -16,7 +16,7 @@ defmodule OAuth2.Response do
 
   @type status_code :: integer
   @type headers     :: list
-  @type body        :: binary | map
+  @type body        :: binary | map | list
 
   @type t :: %__MODULE__{
     status_code: status_code,