diff --git a/src/ResponseType.php b/src/ResponseType.php
index 8c3492c..8010f3d 100644
--- a/src/ResponseType.php
+++ b/src/ResponseType.php
@@ -127,6 +127,14 @@ public static function getAll(): array {
 				$binaryType,
 				null,
 			),
+			new ResponseType(
+				'StreamGeneratorResponse',
+				false,
+				false,
+				null,
+				null,
+				null,
+			),
 			new ResponseType(
 				'TemplateResponse',
 				false,