diff --git a/guix-data-service/branch-updated-emails.scm b/guix-data-service/branch-updated-emails.scm
index b36eced..f369004 100644
--- a/guix-data-service/branch-updated-emails.scm
+++ b/guix-data-service/branch-updated-emails.scm
@@ -85,7 +85,7 @@
                            (channel-for-commit
                             (channel (name 'guix)
                                      (url (second git-repository-details))
-                                     (commit x-git-repo)))
+                                     (commit x-git-newrev)))
                            (channel-instance
                             ;; Obtain a session level lock here, to avoid conflicts with
                             ;; other jobs over the Git repository.