diff --git a/mu4e/mu4e.texi b/mu4e/mu4e.texi
index f6ab0d87..8d77fa9f 100644
--- a/mu4e/mu4e.texi
+++ b/mu4e/mu4e.texi
@@ -2746,6 +2746,9 @@ when new messages arrive.
 @verbatim
 #!/bin/sh
 
+# the mu binary
+MU=mu
+
 # put the path to your Inbox folder here
 CHECKDIR="/home/$LOGNAME/Maildir/Inbox"