diff --git a/vimrc b/vimrc
index 1f6a5fe..a063123 100644
--- a/vimrc
+++ b/vimrc
@@ -363,6 +363,8 @@ if has("cscope")
   endif
   set csverb
   map ,scs0 :cs add cscope.out<CR>
+  map ,kcs0 :cs kill 0<CR>
+  map ,ccs0 :!cscope -b -q -R<CR>
   map ,fs :cs find s <C-R>=expand("<cword>")<CR><CR>
   map ,fg :cs find g <C-R>=expand("<cword>")<CR><CR>
   map ,fd :cs find d <C-R>=expand("<cword>")<CR><CR>