diff --git a/doc/TODO b/doc/TODO
index ec9ec559b..69fbad760 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -3,6 +3,4 @@ o use real entropy to make random (ID, port) numbers more random.
 o in production mode, do not free memory on exit. In debug mode, test leaks.
 o profile memory allocation, and if performance issues, use special memory
   allocator. For example, with caches per thread.
-o do not malloc query_info qname of query for answers from cache. Use ptr
-  to incoming commpt buffer.
 o sendmsg, writev.