diff --git a/lualib-src/lua-skynet.c b/lualib-src/lua-skynet.c
index a2a0ffcb..e92f8a9a 100644
--- a/lualib-src/lua-skynet.c
+++ b/lualib-src/lua-skynet.c
@@ -155,6 +155,8 @@ _send(lua_State *L) {
 			if (dest == 0) {
 				luaL_error(L, "Invalid name %s", addrname);
 			}
+		} else if ('0' <= addrname[0] && addrname[0] <= '9') {
+			luaL_error(L, "Invalid name %s: must not start with a digit", addrname);
 		} else {
 			return _sendname(L, context, addrname);
 		}
diff --git a/skynet-src/skynet_server.c b/skynet-src/skynet_server.c
index a5ddd9a2..30d86a90 100644
--- a/skynet-src/skynet_server.c
+++ b/skynet-src/skynet_server.c
@@ -518,7 +518,7 @@ skynet_send(struct skynet_context * context, uint32_t source, uint32_t destinati
 
 		if (skynet_context_push(destination, &smsg)) {
 			free(data);
-			skynet_error(NULL, "Drop message from %x to %x (size=%d)", source, destination, (int)sz);
+			skynet_error(NULL, "Drop message from %x to %x (type=%d)(size=%d)", source, destination, type, (int)(sz & HANDLE_MASK));
 			return -1;
 		}
 	}