diff --git a/.emacs.d/lisp/main.el b/.emacs.d/lisp/main.el
index 59d1bafa..d286513c 100644
--- a/.emacs.d/lisp/main.el
+++ b/.emacs.d/lisp/main.el
@@ -367,6 +367,9 @@
   (setq ws-butler-keep-whitespace-before-point nil))
 
 (setq auth-sources '("~/.authinfo.gpg" "~/.authinfo" "~/.netrc"))
+;; Emacs 26 embedded auth-source-pass seems to be broken (it complains about an unknown source 'password-store).
+(load "~/.guix-extra-profiles/emacs/emacs/share/emacs/site-lisp/auth-source-pass.el"
+      'noerror)                         ; TODO: Remove with Emacs 27?
 (add-to-list 'auth-sources 'password-store 'append)
 
 (provide 'main)