diff --git a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
index 794a73e0fe35c..6aa12decf573a 100644
--- a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
+++ b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
@@ -1043,7 +1043,9 @@ public class VoiceInteractionManagerService extends SystemService {
         public void registerVoiceInteractionSessionListener(
                 IVoiceInteractionSessionListener listener) {
             enforceCallingPermission(Manifest.permission.ACCESS_VOICE_INTERACTION_SERVICE);
-            mImpl.registerVoiceInteractionSessionListener(listener);
+            if (mImpl != null) {
+                mImpl.registerVoiceInteractionSessionListener(listener);
+            }
         }
 
         @Override