diff --git a/12/main.go b/12/main.go
index 43cf118..d88f90e 100644
--- a/12/main.go
+++ b/12/main.go
@@ -124,8 +124,7 @@ func rotateShip(current rune, degrees int, rl rune) rune {
 
 func rotateWaypoint(w waypoint, action rune, vector int) waypoint {
 	if vector == 180 {
-		w.horizontal = -w.horizontal
-		w.vertical = -w.vertical
+		w.horizontal, w.vertical = -w.horizontal, -w.vertical
 	} else if action == 'R' {
 		if vector == 90 {
 			w.horizontal, w.vertical = w.vertical, -w.horizontal