diff --git a/src/constants.ts b/src/constants.ts
index 0c79ac3..1869d43 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,3 +1,3 @@
 export const doc = document;
 export const htmlElement = doc.documentElement;
-export const $raf = requestAnimationFrame;
+export const $raf = requestAnimationFrame.bind(window);