diff --git a/lib/Froxlor/Api/ApiCommand.php b/lib/Froxlor/Api/ApiCommand.php
index b0fa6768..9b7dcc6e 100644
--- a/lib/Froxlor/Api/ApiCommand.php
+++ b/lib/Froxlor/Api/ApiCommand.php
@@ -285,7 +285,7 @@ abstract class ApiCommand extends ApiParameter
 					}
 				} elseif (in_array($valoper['op'], $ops)) {
 					$condition .= $field . ' ' . $valoper['op'] . ':' . $cleanfield;
-					$query_fields[':' . $cleanfield] = $valoper['value'] ? '';
+					$query_fields[':' . $cleanfield] = $valoper['value'] ?? '';
 				} else {
 					continue;
 				}