diff --git a/userland/dired-custom.el b/userland/dired-custom.el
index 6b91725..3dc1b77 100644
--- a/userland/dired-custom.el
+++ b/userland/dired-custom.el
@@ -63,14 +63,14 @@
   :group 'theurgy-compat)
 
 ;; Multimedia and PDF viewing
-(when (or (not (equal system-type 'windows-nt)) theurgy-enable-ready-player-windows)
+(when (or (equal system-type 'gnu/linux) theurgy-enable-ready-player-windows)
   (use-package ready-player
     :ensure t
     :config
     (setq ready-player-autoplay nil)
     (ready-player-mode 1)))
 
-(when (or (not (equal system-type 'windows-nt)) theurgy-enable-pdf-tools-windows)
+(when (or (equal system-type 'gnu/linux) theurgy-enable-pdf-tools-windows)
   (use-package pdf-tools
     :config (pdf-loader-install)))