diff --git a/cv5/a_train.c b/cv5/a_train.c
index 39ef51b..0116f41 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -88,7 +88,7 @@ struct car* clear_train(struct car* first, const char* target) {
                 if(first == this){
                     first = this->next;
                     free(this);
-                    this->next = NULL;
+                    first->next = NULL;
                     return first;
                 }
                 while(curr != this){