diff --git a/android/src/com/reecedunn/espeak/TtsService.java b/android/src/com/reecedunn/espeak/TtsService.java
index 5c2649d5..6aa394a3 100644
--- a/android/src/com/reecedunn/espeak/TtsService.java
+++ b/android/src/com/reecedunn/espeak/TtsService.java
@@ -93,6 +93,7 @@ public class TtsService extends TextToSpeechService {
         }
 
         mEngine = new SpeechSynthesis(this, mSynthCallback);
+        mAvailableVoices.clear();
         for (Voice voice : mEngine.getAvailableVoices()) {
             mAvailableVoices.put(voice.name, voice);
         }