diff --git a/daemons/pulse_daemon.sh b/daemons/pulse_daemon.sh
index cfbdccd..f051374 100755
--- a/daemons/pulse_daemon.sh
+++ b/daemons/pulse_daemon.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 pactl subscribe |
     while read -r output ; do
-        [ -z "${output##*sink *}" ] && sigdwmblocks 1
+        case "$output" in
+            *"sink "*) sigdwmblocks 1 ;;
+        esac
     done