diff --git a/cocos/asset/asset-manager/asset-manager.ts b/cocos/asset/asset-manager/asset-manager.ts
index e59e71ff836..b84002f1570 100644
--- a/cocos/asset/asset-manager/asset-manager.ts
+++ b/cocos/asset/asset-manager/asset-manager.ts
@@ -331,6 +331,13 @@ export class AssetManager {
 
     private constructor () {}
 
+    /**
+     * @engineInternal
+     */
+    public get files(): Cache {
+        return this._files$;
+    }
+
     /**
      * @engineInternal
      */
diff --git a/platforms/minigame/common/engine/cache-manager.js b/platforms/minigame/common/engine/cache-manager.js
index 86a123a41f1..47963569751 100644
--- a/platforms/minigame/common/engine/cache-manager.js
+++ b/platforms/minigame/common/engine/cache-manager.js
@@ -191,7 +191,7 @@ const cacheManager = {
         }
         for (let i = 0, l = caches.length; i < l; i++) {
             const cacheKey = `${cc.assetManager.utils.getUuidFromURL(caches[i].originUrl)}@native`;
-            cc.assetManager._files.remove(cacheKey);
+            cc.assetManager.files.remove(cacheKey);
             this.cachedFiles.remove(caches[i].originUrl);
         }
 
diff --git a/platforms/runtime/common/engine/cache-manager.js b/platforms/runtime/common/engine/cache-manager.js
index 678e9fd0d12..bfba43897e4 100644
--- a/platforms/runtime/common/engine/cache-manager.js
+++ b/platforms/runtime/common/engine/cache-manager.js
@@ -184,7 +184,7 @@ const cacheManager = {
         }
         for (let i = 0, l = caches.length; i < l; i++) {
             const cacheKey = `${cc.assetManager.utils.getUuidFromURL(caches[i].originUrl)}@native`;
-            cc.assetManager._files.remove(cacheKey);
+            cc.assetManager.files.remove(cacheKey);
             this.cachedFiles.remove(caches[i].originUrl);
         }