diff --git a/vector/src/test/java/im/vector/app/features/voicebroadcast/model/VoiceBroadcastEventTest.kt b/vector/src/test/java/im/vector/app/features/voicebroadcast/model/VoiceBroadcastEventTest.kt
index 8c3d24342f..ca2e8320c9 100644
--- a/vector/src/test/java/im/vector/app/features/voicebroadcast/model/VoiceBroadcastEventTest.kt
+++ b/vector/src/test/java/im/vector/app/features/voicebroadcast/model/VoiceBroadcastEventTest.kt
@@ -34,7 +34,7 @@ import org.matrix.android.sdk.api.session.room.model.relation.ReplyToContent
 
 private const val AN_EVENT_ID = "event_id"
 private const val A_REFERENCED_EVENT_ID = "event_id_ref"
-private const val A_CHUNK_LENGTH = 3_600L
+private const val A_CHUNK_LENGTH = 30
 
 class VoiceBroadcastEventTest {