diff --git a/core/src/Classes/Data/Query/DataQuery.php b/core/src/Classes/Data/Query/DataQuery.php
index 11239b09..b35e9581 100644
--- a/core/src/Classes/Data/Query/DataQuery.php
+++ b/core/src/Classes/Data/Query/DataQuery.php
@@ -175,7 +175,7 @@ class DataQuery
     /**
      * @return bool
      */
-    public function isLengthSet(): bool
+    public function isLengthSet()
     {
         return $this->isLengthSet;
     }