diff --git a/README.md b/README.md
index d39b8f0..0d8dbf6 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,10 @@ Installation
     $ rm -rf .tmux
     $ git clone https://github.com/gpakosz/.tmux.git
     $ ln -s .tmux/.tmux.conf
+    $ touch ~/.tmux.conf.local
+
+Note: `tmux` 1.8 doesn't silently ignore sourcing missing files anymore. That's
+why you now have to `touch ~/.tmux.conf.local`.
 
 ### Accessing the Mac OSX clipboard from within tmux sessions