diff --git a/audio_service/CHANGELOG.md b/audio_service/CHANGELOG.md
index 22edaf91..5d05cbd4 100644
--- a/audio_service/CHANGELOG.md
+++ b/audio_service/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 0.18.4
 
 * Fix Android FlutterJNI error after quick relaunch. 
+* Fix Android NPE when destroying additional FlutterEngines.
 
 ## 0.18.3
 
diff --git a/audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServicePlugin.java b/audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServicePlugin.java
index c9a57f69..b4143bc7 100644
--- a/audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServicePlugin.java
+++ b/audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServicePlugin.java
@@ -116,7 +116,6 @@ public static synchronized void disposeFlutterEngine() {
     private static final String CHANNEL_CLIENT = "com.ryanheise.audio_service.client.methods";
     private static final String CHANNEL_HANDLER = "com.ryanheise.audio_service.handler.methods";
 
-    private static Context applicationContext;
     private static final Set<ClientInterface> clientInterfaces = new HashSet<>();
     private static ClientInterface mainClientInterface;
     private static AudioHandlerInterface audioHandlerInterface;
@@ -189,6 +188,7 @@ static AudioHandlerInterface audioHandlerInterface() throws Exception {
     // INSTANCE FIELDS AND METHODS
     //
 
+    private Context applicationContext;
     private FlutterPluginBinding flutterPluginBinding;
     private ActivityPluginBinding activityPluginBinding;
     private NewIntentListener newIntentListener;
@@ -270,7 +270,9 @@ public void onDetachedFromEngine(FlutterPluginBinding binding) {
         clientInterface.setContext(null);
         clientInterface = null;
         applicationContext = null;
-        if (audioHandlerInterface != null) {
+        if (audioHandlerInterface != null
+                && audioHandlerInterface.messenger == flutterPluginBinding.getBinaryMessenger()) {
+            System.out.println("### destroying audio handler interface");
             audioHandlerInterface.destroy();
             audioHandlerInterface = null;
         }