diff --git a/README.md b/README.md
index 26bb18c2..d5d471da 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,9 @@ Run these in different console
 
 ## About Lua
 
-Skynet now use lua 5.3.0 final, http://www.lua.org/ftp/lua-5.3.0.tar.gz
+Skynet now use Lua 5.3.0 final, http://www.lua.org/ftp/lua-5.3.0.tar.gz
 
-You can also use the other offical lua version , edit the makefile by yourself .
+You can also use the other official Lua version , edit the makefile by yourself .
 
 ## How To (in Chinese)
 
diff --git a/lualib-src/lua-skynet.c b/lualib-src/lua-skynet.c
index ca3476d1..f1594f79 100644
--- a/lualib-src/lua-skynet.c
+++ b/lualib-src/lua-skynet.c
@@ -16,7 +16,7 @@ struct snlua {
 	const char * preload;
 };
 
-static int 
+static int
 traceback (lua_State *L) {
 	const char *msg = lua_tostring(L, 1);
 	if (msg)
@@ -191,7 +191,7 @@ _send(lua_State *L) {
 	}
 	if (session < 0) {
 		// send to invalid address
-		// todo: maybe throw error whould be better
+		// todo: maybe throw an error would be better
 		return 0;
 	}
 	lua_pushinteger(L,session);
@@ -304,7 +304,7 @@ ltrash(lua_State *L) {
 int
 luaopen_skynet_core(lua_State *L) {
 	luaL_checkversion(L);
-	
+
 	luaL_Reg l[] = {
 		{ "send" , _send },
 		{ "genid", _genid },
diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index e538a37b..17f22bd3 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -22,7 +22,7 @@ local skynet = {
 	PTYPE_HARBOR = 5,
 	PTYPE_SOCKET = 6,
 	PTYPE_ERROR = 7,
-	PTYPE_QUEUE = 8,	-- use in deprecated mqueue, use skynet.queue instead
+	PTYPE_QUEUE = 8,	-- used in deprecated mqueue, use skynet.queue instead
 	PTYPE_DEBUG = 9,
 	PTYPE_LUA = 10,
 	PTYPE_SNAX = 11,
@@ -101,7 +101,6 @@ local coroutine_count = 0
 local function co_create(f)
 	local co = table.remove(coroutine_pool)
 	if co == nil then
-		local print = print
 		co = coroutine.create(function(...)
 			f(...)
 			while true do
@@ -464,7 +463,7 @@ function skynet.dispatch_unknown_request(unknown)
 end
 
 local function unknown_response(session, address, msg, sz)
-	print("Response message :" , c.tostring(msg,sz))
+	skynet.error(string.format("Response message :" , c.tostring(msg,sz)))
 	error(string.format("Unknown session : %d from %x", session, address))
 end