diff --git a/lisp/bbdb.el b/lisp/bbdb.el
index 3394e5f..c2c6e3d 100644
--- a/lisp/bbdb.el
+++ b/lisp/bbdb.el
@@ -756,7 +756,7 @@ for the respective MUAs in your init file."
 (defcustom bbdb-update-records-p 'search
   "Return value for `bbdb-select-message' and friends.
 These commands can select messages for further processing by BBDB,
-The amount of subsequent processing is determined `bbdb-update-records-p'.
+The amount of subsequent processing is determined by `bbdb-update-records-p'.
 
 Allowed values are (here ADDRESS is an email address selected
 by `bbdb-select-message'):