diff --git a/emacs/config.el b/emacs/config.el
index e9426fb..4cd3be7 100644
--- a/emacs/config.el
+++ b/emacs/config.el
@@ -50,7 +50,12 @@ message-send-mail-function 'smtpmail-send-it
 smtpmail-auth-credentials "~/.authinfo.gpg"
 smtpmail-smtp-server "127.0.0.1"
 smtpmail-smtp-service 1025)
-(add-to-list 'gnutls-trustfiles "~/.config/mbsync/transient/bridge.crt")
+
+(let ((bridgecert (expand-file-name "~/.config/mbsync/transient/bridge.crt")))
+  (when (file-exists-p bridgecert)
+    (add-to-list 'gnutls-trustfiles bridgecert)
+    )
+  )
 
 (defcustom mu4e-bookmarks
   '(( :name  "Unread messages"