diff --git a/midori/midori-download.vala b/midori/midori-download.vala
index ee44a9d6..ce9003c3 100644
--- a/midori/midori-download.vala
+++ b/midori/midori-download.vala
@@ -83,8 +83,10 @@ namespace Midori {
             }
 
             string speed;
-            if (elapsed != last_time)
-                speed = format_size ((int)((current_size - last_size) / (elapsed - last_time)));
+            if (elapsed != last_time) {
+                speed = format_size ((uint64)(
+                    (current_size - last_size) / (elapsed - last_time)));
+            }
             else
                 /* i18n: Unknown number of bytes, used for transfer rate like ?B/s */
                 speed = _("?B");
diff --git a/toolbars/midori-transferbar.c b/toolbars/midori-transferbar.c
index 76e2c8e0..81ad85a5 100644
--- a/toolbars/midori-transferbar.c
+++ b/toolbars/midori-transferbar.c
@@ -213,8 +213,6 @@ midori_transferbar_add_download_item (MidoriTransferbar* transferbar,
         G_CALLBACK (midori_transferbar_download_notify_status_cb), info);
     g_signal_connect (button, "clicked",
         G_CALLBACK (midori_transferbar_download_button_clicked_cb), info);
-    g_object_set_data_full (G_OBJECT (download), "last-time", g_new0 (gdouble, 1), g_free);
-    g_object_set_data_full (G_OBJECT (download), "last-size", g_new0 (guint64, 1), g_free);
 }
 
 static void