diff --git a/src/utils/intersection-observer.js b/src/utils/intersection-observer.js
index 97840e3..9af89c7 100644
--- a/src/utils/intersection-observer.js
+++ b/src/utils/intersection-observer.js
@@ -1,5 +1,6 @@
 export default function() {
   return (
+    typeof window !== 'undefined' &&
     'IntersectionObserver' in window &&
     'isIntersecting' in window.IntersectionObserverEntry.prototype
   );