diff --git a/bundle/vim-chat/autoload/chat/windows.vim b/bundle/vim-chat/autoload/chat/windows.vim
index ddfc74545..e7248d30a 100644
--- a/bundle/vim-chat/autoload/chat/windows.vim
+++ b/bundle/vim-chat/autoload/chat/windows.vim
@@ -314,7 +314,7 @@ function! s:complete(base,num) abort
       return rsl[a:num % len(rsl)]
     endif
   elseif a:base =~# '^/set_protocol\s*\w*$'
-    let rsl = filter(copy(s:all_protocols), "v:val =~# matchstr(a:base, '\w*$') .'[^\ .]*'")
+    let rsl = filter(copy(s:all_protocols), "v:val =~# matchstr(a:base, '\\w*$') .'[^\ .]*'")
     if len(rsl) > 0
       return matchstr(a:base, '^/set_protocol\s*') . rsl[a:num % len(rsl)]
     endif
@@ -324,7 +324,7 @@ function! s:complete(base,num) abort
       let channels = chat#{s:protocol}#get_channels()
     catch
     endtry
-    let rsl = filter(copy(channels), "v:val =~# '^' . matchstr(a:base, '\\w*$')")
+    let rsl = filter(copy(channels), "v:val =~ '^' . matchstr(a:base, '\\w*$')")
     if len(rsl) > 0
       return matchstr(a:base, '^/set_channel\s*') . rsl[a:num % len(rsl)]
     endif