diff --git a/packages/vitest/src/node/plugins/index.ts b/packages/vitest/src/node/plugins/index.ts
index b5f1f0b24dc9..d89f8d2cf8a0 100644
--- a/packages/vitest/src/node/plugins/index.ts
+++ b/packages/vitest/src/node/plugins/index.ts
@@ -57,7 +57,7 @@ export async function VitestPlugin(options: UserConfig = {}, ctx = new Vitest())
           options,
         )
         options.api = resolveApiConfig(options)
-        options.watch = options.watch && !options.run
+        options.watch &&= !options.run
 
         process.env.BASE_URL ??= viteConfig.base
         process.env.MODE ??= viteConfig.mode