diff --git a/src/Controls/Seek.astro b/src/Controls/Seek.astro
index b777d0a..5714f3d 100644
--- a/src/Controls/Seek.astro
+++ b/src/Controls/Seek.astro
@@ -30,19 +30,12 @@ const {
  * for the JavaScript code in this page.
  *
  */
+
+var Player = document.querySelector('#zorn-player-' + PlayerName + ' video')
+Player.addEventListener('durationchange', (event) => {Seek()})
 function Seek() {
-    var Player = document.querySelector('#zorn-player-' + PlayerName + ' video')
     const timeElapsed = document.querySelector('#zorn-player-' + PlayerName + ' #current')
     const duration = document.querySelector('#zorn-player-' + PlayerName + ' #duration')
-    function formatTime(timeInSeconds) {
-        const result = new Date(timeInSeconds * 1e3)
-            .toISOString()
-            .substr(11, 8)
-        return {
-            minutes: result.substr(3, 2),
-            seconds: result.substr(6, 2),
-        }
-    }
     function initializeVideo() {
         const videoDuration = Math.round(Player.duration)
         const time = formatTime(videoDuration)
@@ -52,6 +45,15 @@ function Seek() {
             `${time.minutes}m ${time.seconds}s`,
         )
     }
+    function formatTime(timeInSeconds) {
+        const result = new Date(timeInSeconds * 1e3)
+            .toISOString()
+            .substr(11, 8)
+        return {
+            minutes: result.substr(3, 2),
+            seconds: result.substr(6, 2),
+        }
+    }
     Player.addEventListener("loadedmetadata", initializeVideo)
     function updateTimeElapsed() {
         const time = formatTime(Math.round(Player.currentTime))
@@ -89,7 +91,7 @@ function Seek() {
         seek.setAttribute("data-seek", skipTo)
         const t = formatTime(skipTo)
         seekTooltip.textContent = `${t.minutes}:${t.seconds}`
-        const rect = Player.getBoundingClientRect()
+        const rect = progressBar.getBoundingClientRect()
         seekTooltip.style.left = `${event.pageX - rect.left}px`
         seekTooltip.style.opacity = '1'
         document.querySelector('#zorn-player-' + PlayerName + ' .vc-progress-bar').style.width = Player.currentTime / Player.duration * 100 + '%'
@@ -110,5 +112,4 @@ function Seek() {
 
     initializeVideo()
 }
-setTimeout(() => {Seek()}, 1000) // Prevent invalid date error
 </script>
\ No newline at end of file