diff --git a/du4/a_train.c b/du4/a_train.c
index 310c3d1..69ebd66 100644
--- a/du4/a_train.c
+++ b/du4/a_train.c
@@ -67,8 +67,8 @@ struct car* clear_train(struct car* first, const char* target) {
     {if(strcmp(next->value, target) == 0){
         
         temp->next = next->next;
+        next->next = NULL;
         free(next);
-        next = temp->next;
 
     }
     else{