diff --git a/src/Kunstmaan/MultiDomainBundle/Twig/MultiDomainTwigExtension.php b/src/Kunstmaan/MultiDomainBundle/Twig/MultiDomainTwigExtension.php
index cd57dd2cad..17fac90699 100644
--- a/src/Kunstmaan/MultiDomainBundle/Twig/MultiDomainTwigExtension.php
+++ b/src/Kunstmaan/MultiDomainBundle/Twig/MultiDomainTwigExtension.php
@@ -52,7 +52,7 @@ public function getCurrentHost(): string
         return $this->domainConfiguration->getHost();
     }
 
-    public function getCurrentFullHost(): array
+    public function getCurrentFullHost(): ?array
     {
         return $this->domainConfiguration->getFullHost();
     }