diff --git a/bundle/vim-chat/autoload/chat/windows.vim b/bundle/vim-chat/autoload/chat/windows.vim
index 7db4be851..e16e042ef 100644
--- a/bundle/vim-chat/autoload/chat/windows.vim
+++ b/bundle/vim-chat/autoload/chat/windows.vim
@@ -379,26 +379,25 @@ function! s:enter() abort
     let s:c_begin = ''
     return
   elseif s:c_begin . s:c_char . s:c_end =~# '/set_protocol\s*'
-    let saved_protocal = s:protocol
-    let s:protocol = matchstr(s:c_begin . s:c_char . s:c_end, '/set_protocol\s*\zs\S*')
+    let protocol = matchstr(s:c_begin . s:c_char . s:c_end, '/set_protocol\s*\zs\S*')
     let s:c_end = ''
     let s:c_char = ''
     let s:c_begin = ''
     try
-      call chat#{s:protocol}#get_channels()
-      if !has_key(s:opened_channels, s:protocol)
-        let s:opened_channels[s:protocol] = []
+      call chat#{protocol}#get_channels()
+      if !has_key(s:opened_channels, protocol)
+        let s:opened_channels[protocol] = []
       endif
+      let s:protocol = protocol
     catch
       call chat#windows#push({
             \ 'user' : '--->',
             \ 'username' : '--->',
             \ 'room' : '',
             \ 'protocol' : s:protocol,
-            \ 'msg' : 'protocal does not exists: ' . s:current_channel,
+            \ 'msg' : 'protocal does not exists: ' . protocol,
             \ 'time': strftime("%Y-%m-%d %H:%M"),
             \ })
-      let s:protocol = saved_protocal
     endtry
     call s:update_msg_screen()
     return