diff --git a/init.el b/init.el
index 510f857..a94ed00 100644
--- a/init.el
+++ b/init.el
@@ -1875,6 +1875,9 @@ line in the block and manually deal with indentation."
   :bind (:map sly-mode-map
          ("C-c e" . my/diagnostic-at-point))
   :autoload sly-connected-p
+  :custom
+  (common-lisp-hyperspec-root
+   (concat "file://" (expand-file-name "~/src/clhs/HyperSpec/")))
   :init
   (defun my/-lisp-mode-autoconnect-sly ()
     (unless (sly-connected-p)
@@ -1889,7 +1892,11 @@ line in the block and manually deal with indentation."
     (kbd ",") 'self-insert-command)
   (evil-define-key nil sly-mrepl-mode-map
     (kbd "C-c ,") 'sly-mrepl-shortcut)
-  (sly-symbol-completion-mode -1))
+  (sly-symbol-completion-mode -1)
+  (defun my/-hyperspec-loopup-in-eww (oldfun &rest r)
+    (let ((browse-url-browser-function #'eww-browse-url))
+      (apply oldfun r)))
+  (advice-add 'hyperspec-lookup :around #'my/-hyperspec-loopup-in-eww))
 
 ;; pdf-tools
 (use-package pdf-tools