diff --git a/vim/plugin/ctags.vim b/vim/plugin/ctags.vim
index 8e27b09..3050af5 100644
--- a/vim/plugin/ctags.vim
+++ b/vim/plugin/ctags.vim
@@ -14,4 +14,9 @@ function! ReindexCtags()
   endif
 endfunction
 
-nmap <Leader>ct :call ReindexCtags()<CR>
+" to stop this mapping from being added, put this in $MYVIMRC:
+"   let g:thoughtbot_ctags_mappings_enabled = 0
+let g:thoughtbot_ctags_mappings_enabled = get(g:, 'thoughtbot_ctags_mappings_enabled', 1)
+if g:thoughtbot_ctags_mappings_enabled != 0
+  nmap <Leader>ct :call ReindexCtags()<CR>
+endif