diff --git a/cv5/a_train.c b/cv5/a_train.c
index 69cf5b4..8796d53 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -43,10 +43,10 @@ void cancel_train(struct car* first) {
     if(first == NULL){
         return;
     }
-    else if(first->next != NULL){
+    else if(first->value != NULL){
        struct car* help = first->next;
        free(first);
-       first->next = NULL;
+       //first->next = NULL;
        cancel_train(help);
        //first->next = NULL;
     }