diff --git a/Serializer/Normalizer/DictionaryEnumNormalizer.php b/Serializer/Normalizer/DictionaryEnumNormalizer.php
index a85f648..ac0c6a1 100644
--- a/Serializer/Normalizer/DictionaryEnumNormalizer.php
+++ b/Serializer/Normalizer/DictionaryEnumNormalizer.php
@@ -34,6 +34,16 @@ public function supportsNormalization(mixed $data, string $format = null): bool
         return $data instanceof DictionaryEnumInterface;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getSupportedTypes(?string $format): array
+    {
+        return [
+            DictionaryEnumInterface::class => true,
+        ];
+    }
+
     /**
      * @param DictionaryEnumInterface $object
      * @param string|null             $format