diff --git a/src/events.ts b/src/events.ts
index 37976c036..17730b39f 100644
--- a/src/events.ts
+++ b/src/events.ts
@@ -1,6 +1,8 @@
 declare let global: any;
 
+const _global = typeof window === 'object' ? window : global;
+
 /* tslint:disable:variable-name */
-export const MouseEvent = (global as any).MouseEvent as MouseEvent;
-export const KeyboardEvent = (global as any).KeyboardEvent as KeyboardEvent;
-export const Event = (global as any).Event as Event;
+export const MouseEvent = (_global as any).MouseEvent as MouseEvent;
+export const KeyboardEvent = (_global as any).KeyboardEvent as KeyboardEvent;
+export const Event = (_global as any).Event as Event;