diff --git a/f.c b/f.c
index ace9a1a..5296b8b 100644
--- a/f.c
+++ b/f.c
@@ -14,7 +14,7 @@ void * TEST_MALLOC(size_t size)
 
 void TEST_FREE(void *p)
 {
-	size_t s = malloc_usable_size(p) - 8;
+	size_t s = malloc_usable_size(p);
 	printf("freed %lu\n", s);
 
 	free_counter += s;