diff --git a/src/core/Entity/Site/Navigation.php b/src/core/Entity/Site/Navigation.php
index f25c139..e459b4a 100644
--- a/src/core/Entity/Site/Navigation.php
+++ b/src/core/Entity/Site/Navigation.php
@@ -248,7 +248,7 @@ class Navigation implements EntityInterface
         return $this;
     }
 
-    public function getColor(): string
+    public function getColor(): ?string
     {
         return $this->color;
     }