diff --git a/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt b/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
index da0100d17..e1b473b2d 100644
--- a/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
+++ b/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
@@ -263,7 +263,7 @@
     }
 
     function trackStatus() {
-        ajaxGet('/api/core/firmware/upgradestatus', { _: Date.now() }, function(data, status) {
+        ajaxGet('/api/core/firmware/upgradestatus', { v: Date.now() }, function(data, status) {
             if (status != 'success') {
                 // recover from temporary errors
                 setTimeout(trackStatus, 1000);
@@ -331,7 +331,7 @@
             $("#statustab_progress").removeClass("fa fa-spinner fa-pulse");
 
             if (reset === true) {
-                ajaxGet('/api/core/firmware/upgradestatus', { _: Date.now() }, function(data, status) {
+                ajaxGet('/api/core/firmware/upgradestatus', { v: Date.now() }, function(data, status) {
                     if (data['log'] != undefined && data['log'] != '') {
                         $('#update_status').html(data['log']);
                     } else {