diff --git a/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc b/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
index a76770d..8217b94 100644
--- a/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
+++ b/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
@@ -9,3 +9,5 @@
     # and its .rc file has an "onrestart restart audio-hal" rule, thus
     # an additional auto-restart from the init process isn't needed.
     oneshot
+    interface android.hardware.audio@4.0::IDevicesFactory default
+    interface android.hardware.audio@2.0::IDevicesFactory default