diff --git a/src/Core/Core.php b/src/Core/Core.php
index c8870d8..e3436c5 100644
--- a/src/Core/Core.php
+++ b/src/Core/Core.php
@@ -140,7 +140,7 @@ private function getColumnGetters(array $columns): array
 	}
 
 
-	private function getValueByRelation(string $column, object|null $candidateEntity = null): string
+	private function getValueByRelation(string $column, object |null $candidateEntity = null): string
 	{
 		$getterValue = null;
 		$return = null;