diff --git a/packages/vite-node/src/client.ts b/packages/vite-node/src/client.ts
index a06653a2ba04..cbabef87e5a4 100644
--- a/packages/vite-node/src/client.ts
+++ b/packages/vite-node/src/client.ts
@@ -24,6 +24,7 @@ const clientStub = {
       decline: () => {},
       invalidate: () => {},
       on: () => {},
+      send: () => {},
     }
   },
   updateStyle(id: string, css: string) {