diff --git a/.config/next/init.lisp b/.config/next/init.lisp
index 050e8d31..8a6ab7c9 100644
--- a/.config/next/init.lisp
+++ b/.config/next/init.lisp
@@ -107,16 +107,27 @@ Videos are downloaded with `+youtube-dl-command+'."
   "Blocker mode with custom hosts from `*my-blocked-hosts*'."
   ((next/blocker-mode::hostlists :initform (list *my-blocked-hosts* next/blocker-mode:*default-host-list*))))
 
-(defclass my-buffer (buffer)
-  ((default-modes :initform (append
-                             '(my-mode vi-normal-mode
-                               my-blocker-mode
-                               proxy-mode)
-                             (get-default 'buffer 'default-modes)))
-   (load-hook :initform (next-hooks:make-hook-string->string
-                         :handlers (list #'old-reddit-handler
-                                         #'auto-proxy-handler)
-                         :combination #'next-hooks:combine-composed-hook))))
+(if (find-class 'gtk-buffer nil)
+    (defclass my-buffer (gtk-buffer)
+      ((default-modes :initform (append
+                                 '(my-mode vi-normal-mode
+                                   my-blocker-mode
+                                   proxy-mode)
+                                 (get-default 'buffer 'default-modes)))
+       (load-hook :initform (next-hooks:make-hook-string->string
+                             :handlers (list #'old-reddit-handler
+                                             #'auto-proxy-handler)
+                             :combination #'next-hooks:combine-composed-hook))))
+    (defclass my-buffer (buffer)
+      ((default-modes :initform (append
+                                 '(my-mode vi-normal-mode
+                                   my-blocker-mode
+                                   proxy-mode)
+                                 (get-default 'buffer 'default-modes)))
+       (load-hook :initform (next-hooks:make-hook-string->string
+                             :handlers (list #'old-reddit-handler
+                                             #'auto-proxy-handler)
+                             :combination #'next-hooks:combine-composed-hook)))))
 
 (setf *buffer-class* 'my-buffer)
 
@@ -156,7 +167,7 @@ Videos are downloaded with `+youtube-dl-command+'."
                        (append
                         my-search-engines
                         (get-default 'remote-interface 'search-engines)))))
-    (defclass my-remote-interface (interface)
+    (defclass my-interface (gtk-interface)
       ;; TODO: Fetch from Emacs' engine.el automatically?
       ((search-engines :initform
                        (append
@@ -165,7 +176,7 @@ Videos are downloaded with `+youtube-dl-command+'."
 
 (if (boundp '*remote-interface-class*)
     (setf *remote-interface-class* 'my-remote-interface)
-    (setf *interface-class* 'my-remote-interface))
+    (setf *interface-class* 'my-interface))
 
 (defmethod deserialize-bookmarks (stream)
   "This version of deserialize-bookmarks is compatibly with Ambrevar's EWW