diff --git a/services/audioflinger/AudioPolicyService.h b/services/audioflinger/AudioPolicyService.h
index 7c6fa74..a086734 100644
--- a/services/audioflinger/AudioPolicyService.h
+++ b/services/audioflinger/AudioPolicyService.h
@@ -95,8 +95,8 @@
     virtual uint32_t getStrategyForStream(audio_stream_type_t stream);
     virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream);
 
-    virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc);
-    virtual status_t registerEffect(effect_descriptor_t *desc,
+    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
+    virtual status_t registerEffect(const effect_descriptor_t *desc,
                                     audio_io_handle_t io,
                                     uint32_t strategy,
                                     int session,