diff --git a/src/services/RedocNormalizedOptions.ts b/src/services/RedocNormalizedOptions.ts
index f8c42ffb..a143eb6e 100644
--- a/src/services/RedocNormalizedOptions.ts
+++ b/src/services/RedocNormalizedOptions.ts
@@ -166,7 +166,7 @@ export class RedocNormalizedOptions {
     }
 
     // Default value
-    return 'swagger.json';
+    return 'openapi.json';
   }
 
   private static normalizeJsonSampleExpandLevel(level?: number | string | 'all'): number {