diff --git a/sound/shairport-sync/files/shairport-sync.config b/sound/shairport-sync/files/shairport-sync.config
index d0bd4fad7223f2..aaa00daa23d1ff 100644
--- a/sound/shairport-sync/files/shairport-sync.config
+++ b/sound/shairport-sync/files/shairport-sync.config
@@ -19,7 +19,8 @@ config shairport-sync 'shairport_sync'
 	option udp_port_base '' # 6001
 	option udp_port_range '' # 100
 	option statistics '' # no/yes - DEPRECATED: This option will be removed in a future release. Use 'diagnostics_statistics' instead
-	option drift '' # 88
+	option drift '' # 88 -- DEPRECATED: use 'drift_tolerance_in_seconds' instead
+	option drift_tolerance_in_seconds '' # 0.002
 	option resync_threshold '' # 2205
 	option log_verbosity '' # 0/1/2/3 - DEPRECATED: This option will be removed in a future release. Use 'diagnostics_log_verbosity' instead
 	option ignore_volume_control '' # no/yes
@@ -47,6 +48,7 @@ config shairport-sync 'shairport_sync'
 	# ALSA
 	option alsa_output_device '' # default
 	option alsa_mixer_control_name '' # PCM
+	option alsa_mixer_control_index '' # 0
 	option alsa_mixer_device '' # default
 	option alsa_latency_offset '' # 0
 	option alsa_buffer_length '' # 6615
diff --git a/sound/shairport-sync/files/shairport-sync.init b/sound/shairport-sync/files/shairport-sync.init
index 6eafcd02d94c1b..e03512b386ee36 100644
--- a/sound/shairport-sync/files/shairport-sync.init
+++ b/sound/shairport-sync/files/shairport-sync.init
@@ -57,6 +57,7 @@ start_instance() {
 		append_num "$cfg" udp_port_base "udp_port_base"
 		append_num "$cfg" udp_port_range "udp_port_range"
 		append_num "$cfg" drift "drift"
+		append_num "$cfg" drift_tolerance_in_seconds "drift_tolerance_in_seconds"
 		append_num "$cfg" resync_threshold "resync_threshold"
 		append_str "$cfg" ignore_volume_control "ignore_volume_control"
 		append_num "$cfg" volume_range_db "volume_range_db"
@@ -95,6 +96,7 @@ start_instance() {
 		printf "{\n"
 		append_str "$cfg" alsa_output_device "output_device"
 		append_str "$cfg" alsa_mixer_control_name "mixer_control_name"
+		append_num "$cfg" alsa_mixer_control_index "mixer_control_index"
 		append_str "$cfg" alsa_mixer_device "mixer_device"
 		append_num "$cfg" alsa_latency_offset "audio_backend_latency_offset"
 		append_num "$cfg" alsa_buffer_length "audio_backend_buffer_desired_length"