diff --git a/thoom-emacs/modules/thoom-completion.el b/thoom-emacs/modules/thoom-completion.el
index 80671a2..d388986 100644
--- a/thoom-emacs/modules/thoom-completion.el
+++ b/thoom-emacs/modules/thoom-completion.el
@@ -62,7 +62,7 @@
   ;; :preview-key on a per-command basis using the `consult-customize' macro.
   (consult-customize
    consult-theme
-   :preview-key '(:debounce 0.5 'any)
+   :preview-key '(:debounce 0.5 any)
    consult-ripgrep consult-git-grep consult-grep
    consult-bookmark consult-recent-file consult-xref
    consult--source-bookmark consult--source-recent-file