diff --git a/packages/fes-preset-built-in/src/utils/generateFiles.js b/packages/fes-preset-built-in/src/utils/generateFiles.js
index b3be02d0..ddc0534f 100644
--- a/packages/fes-preset-built-in/src/utils/generateFiles.js
+++ b/packages/fes-preset-built-in/src/utils/generateFiles.js
@@ -12,7 +12,7 @@ export default async ({ api, watch }) => {
         });
     }
 
-    const watchers = [];
+    let watchers = [];
 
     await generate();
 
@@ -20,6 +20,7 @@ export default async ({ api, watch }) => {
         watchers.forEach((watcher) => {
             watcher.close();
         });
+        watchers = [];
     }
 
     function createWatcher(path) {
@@ -34,6 +35,7 @@ export default async ({ api, watch }) => {
                 await generate();
             }, 100)
         );
+        watchers.push(watcher);
     }
 
     if (watch) {