diff --git a/sway/lock.sh b/sway/lock.sh
index 1fc5e48..a1ecd34 100755
--- a/sway/lock.sh
+++ b/sway/lock.sh
@@ -14,7 +14,12 @@ done
 
 printf '%s\n' "${images[@]}" | xargs -P 0 -I{} convert -resize 20% -level 0%,100%,0.9 -blur 0x2 -resize 500% {} {}
 
-physlock -l  prevent tty switching
-swaylock "${swaylock_args[@]}" -s center
-physlock -L  reenable tty switching
+if command -v physlock 2>/dev/null; then
+	physlock -l  prevent tty switching
+	swaylock "${swaylock_args[@]}" -s center
+	physlock -L  reenable tty switching
+else
+	swaylock "${swaylock_args[@]}" -s center
+fi
+
 rm "${images[@]}"