diff --git a/audio-control b/audio-control
index dbc9107..e96c61c 100755
--- a/audio-control
+++ b/audio-control
@@ -18,15 +18,15 @@ case $1 in
 		;;
 	"vol-up")
 		pactl set-sink-volume 0 +5%
-		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( $SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
+		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
 		;;
 	"vol-down")
 		pactl set-sink-volume 0 -5%
-		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( $SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
+		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
 		;;
 	"reset")
 		pactl set-sink-volume 0 50%
-		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( $SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
+		pactl list sinks | grep '^[[:space:]]Volume:' | head -n $(( SINK + 1  )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
 		;;
 	"help")
 		echo "USAGE: audio-control <command>