diff --git a/include/hardware/audio.h b/include/hardware/audio.h
index d0648b7..6558dda 100644
--- a/include/hardware/audio.h
+++ b/include/hardware/audio.h
@@ -97,6 +97,9 @@
 /* A2DP sink address set by framework */
 #define AUDIO_PARAMETER_A2DP_SINK_ADDRESS "a2dp_sink_address"
 
+/* A2DP source address set by framework */
+#define AUDIO_PARAMETER_A2DP_SOURCE_ADDRESS "a2dp_source_address"
+
 /* Screen state */
 #define AUDIO_PARAMETER_KEY_SCREEN_STATE "screen_state"