diff --git a/core/src/types/index.ts b/core/src/types/index.ts
index 99f7b1d0f..724c7b6a6 100644
--- a/core/src/types/index.ts
+++ b/core/src/types/index.ts
@@ -157,7 +157,7 @@ export type ModelInfo = {
   id: string;
   settings: ModelSettingParams;
   parameters: ModelRuntimeParams;
-  engine: InferenceEngine;
+  engine?: InferenceEngine;
 };
 
 /**
diff --git a/web/hooks/useCreateNewThread.ts b/web/hooks/useCreateNewThread.ts
index 7526feb49..2ba9adb3f 100644
--- a/web/hooks/useCreateNewThread.ts
+++ b/web/hooks/useCreateNewThread.ts
@@ -67,6 +67,7 @@ export const useCreateNewThread = () => {
           top_p: 0,
           stream: false,
         },
+        engine: undefined
       },
       instructions: assistant.instructions,
     }