diff --git a/model/VolumeBase.cpp b/model/VolumeBase.cpp
index 27448da..e20a049 100644
--- a/model/VolumeBase.cpp
+++ b/model/VolumeBase.cpp
@@ -49,7 +49,8 @@
 
     auto listener = getListener();
     if (listener) {
-        listener->onVolumeStateChanged(getId(), static_cast<int32_t>(mState));
+        listener->onVolumeStateChanged(getId(), static_cast<int32_t>(mState),
+                                       static_cast<int32_t>(mMountUserId));
     }
 }