diff --git a/README.md b/README.md
index 5908b10..b0cc2e4 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Asynchronous version of [getaddrinfo()](http://man7.org/linux/man-pages/man3/get
 * Signals completion via a single file descriptor
 	* Compatible with select, poll, epoll, or blocking results
 * Simple API; splits getaddrinfo() into two functions, with a file descriptor in between
+* valgrind-friendly: closes all fds, frees all allocated memory
 
 ## Use