diff --git a/cv5/a_train.c b/cv5/a_train.c
index fea3ef8..760df97 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -35,7 +35,7 @@ void cancel_train(struct car* first) {
     if(first == NULL){
         exit(0);
     }
-    if(this->next == NULL){
+    if(first->next == NULL){
        struct car* this = first;
        first = first->next;
        free(this);