diff --git a/miku/plugins/echo.lua b/miku/plugins/echo.lua
index a26feb3..525a3ad 100644
--- a/miku/plugins/echo.lua
+++ b/miku/plugins/echo.lua
@@ -35,6 +35,12 @@ function echo:action(msg)
 	  output = '*Echo:*\n"' .. utilities.md_escape(input) .. '"'
 	  utilities.send_message(self, msg.chat.id, output, true, nil, true)
 	  return 
+	elseif msg.chat.type == 'group' then
+	  local b = 1
+	  while b ~= 0 do
+		input = utilities.trim(input)
+		input,b = input:gsub('^/+','')
+	  end
 	end
   utilities.send_message(self, msg.chat.id, input, true, nil, true)
   end
diff --git a/miku/utilities.lua b/miku/utilities.lua
index 7a5d838..46ece97 100644
--- a/miku/utilities.lua
+++ b/miku/utilities.lua
@@ -730,7 +730,7 @@ function cache_data(plugin, query, data, timeout, typ, hash_field)
 	  redis:sadd(hash, str)
 	end
   else
-    redis:hset(hash, hash_field, data)
+    redis:hmset(hash, data)
   end
   if timeout then
     redis:expire(hash, timeout)