diff --git a/cv5/a_train.c b/cv5/a_train.c
index 1d172ae..5865147 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -36,7 +36,7 @@ void print_train(struct car* first) {
 
 void cancel_train(struct car* first) {
     if(first!=NULL){
-        first->next=first;
+        first=first->next;
         free(first->next);
         cancel_train(first);
     }