diff --git a/services/batteryservice/IBatteryPropertiesRegistrar.cpp b/services/batteryservice/IBatteryPropertiesRegistrar.cpp
index 296bfab..46934e0 100644
--- a/services/batteryservice/IBatteryPropertiesRegistrar.cpp
+++ b/services/batteryservice/IBatteryPropertiesRegistrar.cpp
@@ -34,14 +34,14 @@
         void registerListener(const sp<IBatteryPropertiesListener>& listener) {
             Parcel data;
             data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
-            data.writeStrongBinder(listener->asBinder());
+            data.writeStrongBinder(IInterface::asBinder(listener));
             remote()->transact(REGISTER_LISTENER, data, NULL);
         }
 
         void unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
             Parcel data;
             data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
-            data.writeStrongBinder(listener->asBinder());
+            data.writeStrongBinder(IInterface::asBinder(listener));
             remote()->transact(UNREGISTER_LISTENER, data, NULL);
         }