diff --git a/modules/ui/modeline/config.el b/modules/ui/modeline/config.el
index 0a29c426a..3153784d8 100644
--- a/modules/ui/modeline/config.el
+++ b/modules/ui/modeline/config.el
@@ -27,6 +27,10 @@
   (when (daemonp)
     (setq doom-modeline-icon t))
   :config
+  ;; Fix an issue where these two variables aren't defined in TTY Emacs on MacOS
+  (defvar mouse-wheel-down-event nil)
+  (defvar mouse-wheel-up-event nil)
+
   (add-hook 'doom-modeline-mode-hook #'size-indication-mode) ; filesize in modeline
   (add-hook 'doom-modeline-mode-hook #'column-number-mode)   ; cursor column in modeline