diff --git a/media/libmedia/IEffect.cpp b/media/libmedia/IEffect.cpp
index b94012a..c2fff78 100644
--- a/media/libmedia/IEffect.cpp
+++ b/media/libmedia/IEffect.cpp
@@ -190,7 +190,7 @@
 
         case GET_CBLK: {
             CHECK_INTERFACE(IEffect, data, reply);
-            reply->writeStrongBinder(getCblk()->asBinder());
+            reply->writeStrongBinder(IInterface::asBinder(getCblk()));
             return NO_ERROR;
         } break;