diff --git a/abmux.sh b/abmux.sh
index 4a7c7cc..7ccecae 100755
--- a/abmux.sh
+++ b/abmux.sh
@@ -8,6 +8,6 @@ while true; do
   sname="$(printf '%s\nNew\nQuit\n' "${slist}" | grep . | fzf --tac --footer="$FTR")"
   [ "$sname" = 'Quit' ] && break
   [ "$sname" = 'New' ] && read -r -p 'New session name: ' sname
-  sname="$(echo "$sname" | sed -E 's/^\d+\ -\ //')"
+  sname="$(echo "$sname" | sed -E 's/^[0-9]+\ -\ //')"
   [ -n "$sname" ] && abduco -A "$sname" "$SHELL"
 done