diff --git a/bundles/org.smarthomej.binding.amazonechocontrol/src/main/java/org/smarthomej/binding/amazonechocontrol/internal/dto/request/AnnouncementTO.java b/bundles/org.smarthomej.binding.amazonechocontrol/src/main/java/org/smarthomej/binding/amazonechocontrol/internal/dto/request/AnnouncementTO.java
index de8e427e41..6c67b899e4 100644
--- a/bundles/org.smarthomej.binding.amazonechocontrol/src/main/java/org/smarthomej/binding/amazonechocontrol/internal/dto/request/AnnouncementTO.java
+++ b/bundles/org.smarthomej.binding.amazonechocontrol/src/main/java/org/smarthomej/binding/amazonechocontrol/internal/dto/request/AnnouncementTO.java
@@ -22,7 +22,7 @@
  * @author Jan N. Klug - Initial contribution
  */
 public class AnnouncementTO {
-    public String expireAfter = "PTS5";
+    public String expireAfter = "PT5S";
     public List<AnnouncementContentTO> content = List.of();
     public AnnouncementTargetTO target = new AnnouncementTargetTO();
     public String customerId;