diff --git a/scenes/robot.gd b/scenes/robot.gd
index 2924016..8beffe8 100644
--- a/scenes/robot.gd
+++ b/scenes/robot.gd
@@ -64,7 +64,9 @@ func _on_area_3d_area_entered(area: Area3D) -> void:
 		EventBus.game_lost.emit("ROBOT GOT IN")
 
 func stalking_check():
-	
+	if safety_zone == null:
+		return
+
 	var robot_position = self.global_transform.origin
 	var elevator = safety_zone.global_transform.origin
 	var distance = robot_position.distance_to(elevator)