diff --git a/global.d.ts b/global.d.ts
index 659167f7..b75bfdbf 100644
--- a/global.d.ts
+++ b/global.d.ts
@@ -1,6 +1,6 @@
 declare const __webpack_public_path__: string;
 
-interface NodeModule {
+declare interface NodeModule {
   hot: any;
 }