diff --git a/guix-data-service/web/build/html.scm b/guix-data-service/web/build/html.scm
index fdbfd7e..f9939af 100644
--- a/guix-data-service/web/build/html.scm
+++ b/guix-data-service/web/build/html.scm
@@ -96,9 +96,8 @@
          (thead
           (tr
            (th (@ (class "col-xs-2")) "Status")
-           (th (@ (class "col-xs-9")) "Derivation")
-           (th (@ (class "col-xs-1")) "Started at")
-           (th (@ (class "col-xs-1")) "Finished at")
+           (th (@ (class "col-xs-10")) "Derivation")
+           (th (@ (class "col-xs-1")) "Timestamp")
            (th (@ (class "col-xs-1")) "")))
          (tbody
           ,@(map
diff --git a/guix-data-service/web/revision/html.scm b/guix-data-service/web/revision/html.scm
index b2622b3..6aa3218 100644
--- a/guix-data-service/web/revision/html.scm
+++ b/guix-data-service/web/revision/html.scm
@@ -1922,9 +1922,8 @@ figure {
          (thead
           (tr
            (th (@ (class "col-xs-2")) "Status")
-           (th (@ (class "col-xs-9")) "Derivation")
-           (th (@ (class "col-xs-1")) "Started at")
-           (th (@ (class "col-xs-1")) "Finished at")
+           (th (@ (class "col-xs-10")) "Derivation")
+           (th (@ (class "col-xs-1")) "Timestamp")
            (th (@ (class "col-xs-1")) "")))
          (tbody
           ,@(map