diff --git a/app/static/js/film.js b/app/static/js/film.js
index ed49e7d..570caff 100644
--- a/app/static/js/film.js
+++ b/app/static/js/film.js
@@ -41,7 +41,7 @@ document.querySelector('a#play-fullscreen').addEventListener('click', event => {
     }
     video.addEventListener('play', enterFullscreen);
     video.addEventListener('fullscreenchange', event => {
-        if (!document.fullscreen) {
+        if (document.fullscreenElement === null) {
             continueTimecode = video.currentTime
             video.remove()
             if (document.fullscreenElement) {