diff --git a/cv5/a_train.c b/cv5/a_train.c
index 5415679..5a6bb76 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -80,7 +80,7 @@ struct car* clear_train(struct car* first, const char* target) {
 
     else{
         struct car* this = first;
-        while(this->next != NULL){
+        while(this!= NULL){
             //while(this != NULL){
                 int x = strcmp(this->next->value, target);
                 if(x == 0){