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-rw-r--r--lisp/subr.el2
1 files changed, 2 insertions, 0 deletions
diff --git a/lisp/subr.el b/lisp/subr.el
index c2464c942f1..1abfb4797f5 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -676,6 +676,8 @@ To make a hook variable buffer-local, always use
(defun add-to-list (list-var element)
"Add to the value of LIST-VAR the element ELEMENT if it isn't there yet.
The test for presence of ELEMENT is done with `equal'.
+If ELEMENT is added, it is added at the beginning of the list.
+
If you want to use `add-to-list' on a variable that is not defined
until a certain package is loaded, you should put the call to `add-to-list'
into a hook function that will be run only after loading the package.