diff --git a/lib/plugins/generator/asset.js b/lib/plugins/generator/asset.js
index dce1b0c947..f816677ce3 100644
--- a/lib/plugins/generator/asset.js
+++ b/lib/plugins/generator/asset.js
@@ -9,9 +9,8 @@ function assetGenerator(locals) {
   const self = this;
 
   function process(name) {
-    return Promise.filter(self.model(name).toArray(), asset => fs.exists(asset.source).then(exist => {
-      if (exist) return exist;
-      return asset.remove().thenReturn(exist);
+    return Promise.filter(self.model(name).toArray(), asset => fs.exists(asset.source).tap(exist => {
+      if (!exist) return asset.remove();
     })).map(asset => {
       const source = asset.source;
       let path = asset.path;