diff --git a/init.el.nix b/init.el.nix
index 2c053da..306514d 100644
--- a/init.el.nix
+++ b/init.el.nix
@@ -880,7 +880,7 @@ If the new path's directories does not exist, create them."
 
   :init
   (setq evil-respect-visual-line-mode t)
-  (setq evil-undo-system 'undo-redo)
+  (evil-set-undo-system 'undo-redo)
 
   ;; Enable this if you want C-u to scroll up, more like pure Vim
   ;(setq evil-want-C-u-scroll t)
diff --git a/vscode-settings.nix b/vscode-settings.nix
index d0d3130..5d64c59 100644
--- a/vscode-settings.nix
+++ b/vscode-settings.nix
@@ -335,6 +335,7 @@
   "window.restoreWindows" = "none";
   "window.titleBarStyle" = "custom";
   "workbench.colorTheme" = "One Dark Pro Darker";
+  "workbench.preferredDarkColorTheme" = "One Dark Pro Darker";
   "workbench.editor.enablePreview" = false;
   "workbench.editor.enablePreviewFromQuickOpen" = false;
   "workbench.editorAssociations" = { "*.jpg" = "imagePreview.previewEditor"; };