diff --git a/README.org b/README.org
index f6a770a..7b45c11 100644
--- a/README.org
+++ b/README.org
@@ -645,6 +645,12 @@ Create a keybinding to open the mail dashboard with =SPC m=.
 
 *** Browser
 
+Write out the ~$BROWSER~ environment variable.
+
+#+begin_src emacs-lisp
+(setenv "BROWSER" dotfiles/browser)
+#+end_src
+
 Launch a browser with =SPC b=.
 
 #+begin_src emacs-lisp
diff --git a/modules/desktop.el b/modules/desktop.el
index 8a94e33..cfb8b00 100644
--- a/modules/desktop.el
+++ b/modules/desktop.el
@@ -36,6 +36,8 @@
 (dotfiles/leader
   "m" '(mu4e :which-key "Mail"))
 
+(setenv "BROWSER" dotfiles/browser)
+
 ;; (dotfiles/leader
 ;;   "b" '(dotfiles/run-in-background dotfiles/browser :which-key "Browser"))