\s does not work inside brackets

diff --git a/contrib/listen_lid.sh b/contrib/listen_lid.sh
index 6daad5375feb5b9804a44bb8194c68a988577ef3..de60f40f33318403c10d866be46ad08af3ab7a65 100755 (executable)
--- a/contrib/listen_lid.sh
+++ b/contrib/listen_lid.sh
@@ -4,7 +4,7 @@
 # sudo gpasswd -a $USER input
 
 stdbuf -oL libinput debug-events | \
-    egrep --line-buffered '^[\s-]+event[0-9]+\s+SWITCH_TOGGLE\s' | \
+    egrep --line-buffered '^[[:space:]-]+event[0-9]+\s+SWITCH_TOGGLE\s' | \
     while read line; do
     autorandr --change --default default
 done