diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index e15d98a..365c790 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -290,6 +290,7 @@
                 Vector<String8>         mNewParameters;
                 status_t                mParamStatus;
 
+                // vector owns each ConfigEvent *, so must delete after removing
                 Vector<ConfigEvent *>     mConfigEvents;
 
                 // These fields are written and read by thread itself without lock or barrier,