diff --git a/readme.md b/readme.md
index 66fc9e8c..5412b6de 100644
--- a/readme.md
+++ b/readme.md
@@ -64,6 +64,10 @@ Use `:diffthis` when opening multiple files to run `:diffthis` on the first 4 fi
 
     If more than one mode is specified, they will be tried in order until a directory is located.
 
+* If a file is already open, open it again in a new pane instead of switching to the existing pane
+
+    `let g:ctrlp_switch_buffer = 'et'`
+
 * Exclude files and directories using Vim's `wildignore` and CtrlP's own `g:ctrlp_custom_ignore`. If a custom listing command is being used, exclusions are ignored:
 
     ```vim