diff --git a/mediapipe/tasks/web/core/fileset_resolver.ts.template b/mediapipe/tasks/web/core/fileset_resolver.ts.template
index 289ee4d92..b98748c07 100644
--- a/mediapipe/tasks/web/core/fileset_resolver.ts.template
+++ b/mediapipe/tasks/web/core/fileset_resolver.ts.template
@@ -54,7 +54,7 @@ async function createFileset(
   return {
     wasmLoaderPath: `${basePath}/${taskName}_${suffix}.js`,
     wasmBinaryPath: `${basePath}/${taskName}_${suffix}.wasm`,
-  };
+  } as unknown as WasmFileset;
 }
 
 // tslint:disable:class-as-namespace