diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index 03699f95..ec9258b1 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -709,8 +709,15 @@ function skynet.term(service)
 	return _error_dispatch(0, service)
 end
 
+local function clear_pool()
+	coroutine_pool = {}
+end
+
 -- Inject internal debug framework
 local debug = require "skynet.debug"
-debug(skynet, dispatch_message)
+debug(skynet, {
+	dispatch = dispatch_message,
+	clear = clear_pool,
+})
 
 return skynet
diff --git a/lualib/skynet/debug.lua b/lualib/skynet/debug.lua
index 4105ddcb..d834bf23 100644
--- a/lualib/skynet/debug.lua
+++ b/lualib/skynet/debug.lua
@@ -2,7 +2,7 @@ local io = io
 local table = table
 local debug = debug
 
-return function (skynet, dispatch_func)
+return function (skynet, export)
 
 local internal_info_func
 
@@ -18,7 +18,7 @@ function dbgcmd.MEM()
 end
 
 function dbgcmd.GC()
-	coroutine_pool = {}
+	export.clear()
 	collectgarbage "collect"
 end
 
@@ -49,7 +49,7 @@ end
 
 function dbgcmd.RUN(source, filename)
 	local inject = require "skynet.inject"
-	local output = inject(source, filename , dispatch_func, skynet.register_protocol)
+	local output = inject(source, filename , export.dispatch, skynet.register_protocol)
 	collectgarbage "collect"
 	skynet.ret(skynet.pack(table.concat(output, "\n")))
 end