diff --git a/lib/speech2device.js b/lib/speech2device.js
index 6ea43a1..a8b40d5 100644
--- a/lib/speech2device.js
+++ b/lib/speech2device.js
@@ -280,7 +280,10 @@ class Speech2Device {
                 let count = 0;
                 let intervalHandler = setInterval(async () => {
                     count++;
-                    if (count > 20) {
+                    // We are checking every 500 ms, expected length of playback is defined in variable duration in seconds
+                    // Thus, we have to count to duration*2 to be able to wait long enough for the expected playback duration.
+                    // We add two additional seconds, to cover delays before the playback starts.
+                    if (count > (duration+2)*2) {
                         clearInterval(intervalHandler);
                         intervalHandler = null;
                         this.adapter.log.error(`Error while checking if ${chromecastAnnouncementDev} finished playing announcement: ${announcementJSON}: TIMEOUT`);