diff --git a/cv5/a_train.c b/cv5/a_train.c
index 6bb7c5c..ce49736 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -61,7 +61,7 @@ struct car* clear_train(struct car* first, const char* target) {
     }
     else{
         struct car* this = first;
-        while(first != NULL){
+        while(this != NULL){
             int x = strcmp(this->value, target);
             if(x == 0){ 
                 struct car* curr = first;