diff --git a/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php b/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
index ee00c4228..bf488681e 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
@@ -109,7 +109,7 @@ class UIModelGrid
                             $row[$fieldname] = '';
                             foreach ($listItems as $fieldValue) {
                                 if ($fieldValue['selected'] == 1) {
-                                    if (!empty($row[$fieldname])) {
+                                    if ($row[$fieldname] != "") {
                                         $row[$fieldname] .= ',';
                                     }
                                     $row[$fieldname] .= $fieldValue['value'];