diff --git a/tools/chatgui-android/router-tests/build.gradle.kts b/tools/chatgui-android/router-tests/build.gradle.kts
index a83d5dea..909b48f7 100644
--- a/tools/chatgui-android/router-tests/build.gradle.kts
+++ b/tools/chatgui-android/router-tests/build.gradle.kts
@@ -23,6 +23,10 @@ kotlin {
             "com/utun/chat/data/RadioAutoSettings.kt", "com/utun/chat/data/RadioVadWindow.kt",
             "com/utun/chat/data/RadioHostEnvironment.kt", "com/utun/chat/data/MicrophonePermission.kt",
             "com/utun/chat/data/RadioCallController.kt", "com/utun/chat/data/RadioOverlayService.kt")
+        kotlin.include("com/utun/chat/data/CallAudioEngine.kt", "com/utun/chat/data/CallAudioOutput.kt",
+            "com/utun/chat/data/CallAudioTiming.kt", "com/utun/chat/data/CallAudioTrace.kt",
+            "com/utun/chat/data/CallPlaybackBuffer.kt", "com/utun/chat/data/CallOutputRecovery.kt",
+            "com/utun/chat/data/CallState.kt", "com/utun/chat/data/CallAudioHost.kt")
     }
 }