diff --git a/cv5/a_train.c b/cv5/a_train.c
index 6acbafc..7cecd41 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -40,6 +40,7 @@ void cancel_train(struct car* first) {
     else if(first->next == NULL){
         free(first);
         first = NULL;
+        exit(0);
     }
     cancel_train(first->next);
     free(first);