diff --git a/.guix/modules/tiedote-md-service.scm b/.guix/modules/tiedote-md-service.scm
index 1323f78..81de2c7 100644
--- a/.guix/modules/tiedote-md-service.scm
+++ b/.guix/modules/tiedote-md-service.scm
@@ -101,8 +101,10 @@ the tiedote.md user on this system.")
            (receive-script (program-file "tiedote.md-receive"
                                          #~(apply execl #$receive-exec)))
            (forward-file (mixed-text-file "dot-forward" "|" receive-script)))
-      #~(symlink #$forward-file
-                 (string-append #$state-directory "/.forward")))))
+      #~(let ((.forward (string-append #$state-directory "/.forward")))
+          (if (file-exists? .forward)
+            (delete-file .forward))
+          (symlink #$forward-file .forward)))))
 
 (define tiedote.md-service-type
   (service-type