diff --git a/src/Twig/Component/Badge.php b/src/Twig/Component/Badge.php
index 3baf22a..6fa0ea5 100644
--- a/src/Twig/Component/Badge.php
+++ b/src/Twig/Component/Badge.php
@@ -28,8 +28,10 @@ final class Badge
     {
         if (null !== $colour) {
 
-            if (!in_array($colour, EnumBadge::cases())) {
-                throw new \RuntimeException(sprintf('"%s" is not a valid Badge colour. Available options are: %s', $colour, implode(", ", EnumBadge::cases())));
+            $cases = array_map(fn(EnumBadge $b) => $b->name, EnumBadge::cases());
+
+            if (!in_array($colour, $cases)) {
+                throw new \RuntimeException(sprintf('"%s" is not a valid Badge colour. Available options are: %s', $colour, implode(", ", $cases)));
             }
 
         } else {