diff --git a/cv5/a_train.c b/cv5/a_train.c
index 8e85900..34e7a84 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -33,20 +33,12 @@ void print_train(struct car* first) {
 }
 
 void cancel_train(struct car* first) {   
-    if(first == NULL){
-        return;
-    }
-    if(first->next != NULL){
-       cancel_train(first->next);
-       first->next = NULL;
-    }
-    else if(first->next == NULL){
-       free(first);
+    if(first != NULL){
+        cancel_train(first->next);
+        free(first);
     }
 }
 
-
-
 struct car* clear_train(struct car* first, const char* target) {
     if(first == NULL){
         return 0;