diff --git a/api/src/Service/OasParserService.php b/api/src/Service/OasParserService.php
index 9dbaf7d75..423618478 100644
--- a/api/src/Service/OasParserService.php
+++ b/api/src/Service/OasParserService.php
@@ -30,6 +30,7 @@ class OasParserService
 
     private array $handlersToCreate;
     private array $oas;
+    private array $schemaRefs;
 
     /**
      * @param EntityManagerInterface $entityManager