diff --git a/src/Forms/Helpers.php b/src/Forms/Helpers.php
index 5d4eb1e5..8aedb1f7 100644
--- a/src/Forms/Helpers.php
+++ b/src/Forms/Helpers.php
@@ -302,6 +302,6 @@ public static function getSingleType($reflection): ?string
 	/** @internal */
 	public static function getSupportedImages(): array
 	{
-		return array_map(fn($type) => Image::typeToMimeType($type), Image::getSupportedTypes());
+		return array_values(array_map(fn($type) => Image::typeToMimeType($type), Image::getSupportedTypes()));
 	}
 }