diff --git a/cv5/a_train.c b/cv5/a_train.c
index c50cd62..0bef6ec 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -63,7 +63,7 @@ struct car* clear_train(struct car* first, const char* target) {
         }
     }
     struct car* prev = first;
-        while(prev->next->next != NULL){
+        while(prev->next!= NULL){
             int x = strcmp(prev->next->value, target);
             if(x == 0){ 
                 struct car* third = prev->next->next;