minibuffer-complete height

[nmcahzww]

when I launch emacs gui, the minibuffer-complete buffer is always displaying several lines and a half of a line below it.

just like this.
however, when launch it in terminal, it works fine.
my configuration is:

(use-package spaceline-all-the-icons
:ensure t
:after spaceline
:config
(spaceline-all-the-icons--setup-paradox)
(spaceline-all-the-icons--setup-neotree)
(spaceline-all-the-icons-theme))
)
is there any way to fix this?