diff --git a/src/index.ts b/src/index.ts
index a0811739..59ffc2d4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -20,3 +20,5 @@ export { PluginType };
 export { Cst };
 export { errors };
 export { Ast };
+const hoge = 5;
+export { hoge };