diff --git a/cv4/list_ops.c b/cv4/list_ops.c
index 55057b3..ee3c710 100644
--- a/cv4/list_ops.c
+++ b/cv4/list_ops.c
@@ -3,6 +3,9 @@
 
 #include <stdlib.h>
 #include <stdbool.h>
+#include <stdarg.h>
+#include "list_ops.h"
+#include "test-framework/unity.h"
 
 typedef int list_element_t;
 
@@ -42,7 +45,4 @@ list_t *reverse_list(list_t *list);
 
 // destroy the entire list
 // list will be a dangling pointer after calling this method on it
-void delete_list(list_t *list);
-
-#endif