diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index d8a5d99..97a8f8b 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1053,7 +1053,7 @@
 }
 
 // audioConfigChanged_l() must be called with AudioFlinger::mLock held
-void AudioFlinger::audioConfigChanged_l(int event, audio_io_handle_t ioHandle, void *param2)
+void AudioFlinger::audioConfigChanged_l(int event, audio_io_handle_t ioHandle, const void *param2)
 {
     size_t size = mNotificationClients.size();
     for (size_t i = 0; i < size; i++) {