diff --git a/application/RaspberryDisplay/RaspberryDisplayController.php b/application/RaspberryDisplay/RaspberryDisplayController.php
index fbdfaff0d..0d39046f7 100644
--- a/application/RaspberryDisplay/RaspberryDisplayController.php
+++ b/application/RaspberryDisplay/RaspberryDisplayController.php
@@ -101,12 +101,22 @@ class RaspberryDisplayController extends mfBaseController {
         $display = RaspberryDisplayModel::get((int)$this->request->id);
         if (!$display) return false;
 
+        $oldUrl = $display->display_url;
+        $oldHdmiPort = (int)$display->hdmi_port;
+
         foreach (['display_label', 'hostname', 'ip_address', 'display_url', 'group_name', 'group_order', 'monitor_size', 'hdmi_port', 'agent_port', 'custom_style'] as $field) {
             if (isset($this->request->$field)) $display->$field = $this->request->$field;
         }
         $display->edit_by = $this->me->id;
         $display->edit = time();
         RaspberryDisplayModel::save($display);
+
+        $newUrl = $display->display_url;
+        if ($newUrl !== $oldUrl && !empty($newUrl)) {
+            NocDisplayAgent::fromDisplay(['ip_address' => $display->ip_address, 'agent_port' => $display->agent_port])
+                ->setUrl((int)$display->hdmi_port, $newUrl);
+        }
+
         return true;
     }