diff --git a/guix-data-service/web/repository/html.scm b/guix-data-service/web/repository/html.scm
index b420f44..856272c 100644
--- a/guix-data-service/web/repository/html.scm
+++ b/guix-data-service/web/repository/html.scm
@@ -504,8 +504,10 @@
                     (apply max
                            times-in-seconds))
                    (min-to-max-seconds
-                    (- latest-date-seconds
-                       earliest-date-seconds)))
+                    (max
+                     1
+                     (- latest-date-seconds
+                        earliest-date-seconds))))
               (map
                (match-lambda*
                  ((version-column-entry