diff --git a/lisp/use-package/use-package-core.el b/lisp/use-package/use-package-core.el
index 65b9485b4e3..96b7a61edc9 100644
--- a/lisp/use-package/use-package-core.el
+++ b/lisp/use-package/use-package-core.el
@@ -1888,7 +1888,7 @@ Usage:
 :load-path       Add to the `load-path' before attempting to load the package.
 :diminish        Support for diminish.el (if installed).
 :delight         Support for delight.el (if installed).
-:custom          Call `Custom-set' or `set-default' with each variable
+:custom          Call `customize-set-variable' on each variable
                  definition without modifying the Emacs `custom-file'.
                  (compare with `custom-set-variables').
 :custom-face     Call `face-spec-set' with each face definition.