diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index e4dfdc58..d8212f18 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -92,7 +92,6 @@ local function _error_dispatch(error_session, error_source)
 		if watching_session[error_session] then
 			table.insert(error_queue, error_session)
 		end
-		session_response[coroutine.running()] = true -- error report don't need response
 	end
 end
 
@@ -239,12 +238,8 @@ function suspend(co, result, command, param, size)
 	elseif command == "EXIT" then
 		-- coroutine exit
 		local address = session_coroutine_address[co]
-		local session = session_coroutine_id[co]
 		if address then
 			release_watching(address)
-			if session ~= 0 and not session_response[co] then
-				error "no response"	-- need response
-			end
 			session_coroutine_id[co] = nil
 			session_coroutine_address[co] = nil
 			session_response[co] = nil