diff --git a/lib/resty/openidc.lua b/lib/resty/openidc.lua
index cbd855f..789f8fb 100644
--- a/lib/resty/openidc.lua
+++ b/lib/resty/openidc.lua
@@ -53,6 +53,8 @@ local cjson = require("cjson")
 local cjson_s = require("cjson.safe")
 local http = require("resty.http")
 local r_session = require("resty.session")
+r_session.session_compressor = "zlib"
+r_session.session_cookie_maxsize = 8000
 local string = string
 local ipairs = ipairs
 local pairs = pairs
@@ -1142,6 +1144,8 @@ function openidc.save_as_authenticated(opts,session,json,do_redirect)
 
   local current_time = ngx.time()
   if session == nil then
+    log(DEBUG, "Compressor " .. r_session.session_compressor)
+    log(DEBUG, "Cookie Max Size " .. r_session.session_cookie_maxsize)
     session, session_error = r_session.start(session_opts)
     if session == nil then
       log(ERROR, "Error starting session: " .. session_error)
@@ -1775,4 +1779,4 @@ function openidc.set_logging(new_log, new_levels)
   WARN = new_levels.WARN and new_levels.WARN or ngx.WARN
 end
 
-return openidc
\ No newline at end of file
+return openidc