diff --git a/lib/src/http/system_middleware/StaticServer.ts b/lib/src/http/system_middleware/StaticServer.ts
index 3529ef5..de0296e 100644
--- a/lib/src/http/system_middleware/StaticServer.ts
+++ b/lib/src/http/system_middleware/StaticServer.ts
@@ -53,7 +53,7 @@ export default class StaticServer extends Middleware {
      * @return string
      */
     protected resolve(asset_dir: string, rel_file: string): UniversalPath {
-        return this.app.path(asset_dir, rel_file)
+        return this.app.app_path(asset_dir, rel_file)
     }
 
     /**