diff --git a/src/Storage/QueryParameterParser.php b/src/Storage/QueryParameterParser.php
index 2eaa35e9d..8ea6f05e3 100644
--- a/src/Storage/QueryParameterParser.php
+++ b/src/Storage/QueryParameterParser.php
@@ -89,6 +89,10 @@ public function setupDefaults(): void
             'value' => '$1',
             'operator' => 'eq',
         ]);
+        $this->addValueMatcher('()', [
+            'value' => '$1',
+            'operator' => 'eq',
+        ]);
         // @codingStandardsIgnoreEnd
 
         $this->addFilterHandler([$this, 'defaultFilterHandler']);