diff --git a/guix-data-service/model/git-repository.scm b/guix-data-service/model/git-repository.scm
index 8fcbb43..623e6aa 100644
--- a/guix-data-service/model/git-repository.scm
+++ b/guix-data-service/model/git-repository.scm
@@ -137,6 +137,9 @@ WHERE id = $1"
                 (lset-difference =
                                  existing-ids
                                  target-ids)))
+
+          ;; TODO This doesn't work if there's revisions associated with the
+          ;; git repository being deleted
           (for-each
            (lambda (id-to-remove)
              (simple-format (current-error-port)