diff --git a/utils.c b/utils.c
index fae0c19..9167381 100644
--- a/utils.c
+++ b/utils.c
@@ -203,7 +203,11 @@ short _get_dest_zone(struct barrel *bar, char robot_id) {
                 if (hla_night_mode) {
                     short nz = get_first_night_zone();
                     if (one_robot_mode) {
-                        return nz;
+                        if (nz < 0) {
+                            return hla_exchange_zone;
+                        } else {
+                            return nz;
+                        }
                     } else {
                         if (nz < hla_exchange_zone) {
                             return hla_exchange_zone;