diff --git a/packages/vite/src/node/cli.ts b/packages/vite/src/node/cli.ts
index 4ea483ea02a1bc..4cbe1a3d4e94f2 100644
--- a/packages/vite/src/node/cli.ts
+++ b/packages/vite/src/node/cli.ts
@@ -217,7 +217,7 @@ cli
             }
           },
           'serve',
-          'development'
+          'production'
         )
         await preview(config, cleanOptions(options))
       } catch (e) {
diff --git a/packages/vite/src/node/preview.ts b/packages/vite/src/node/preview.ts
index da4360b60ea385..1d860766751130 100644
--- a/packages/vite/src/node/preview.ts
+++ b/packages/vite/src/node/preview.ts
@@ -45,7 +45,7 @@ export async function preview(
     config.base,
     sirv(distDir, {
       etag: true,
-      dev: !config.isProduction,
+      dev: true,
       single: true
     })
   )