diff --git a/LICENSE b/LICENSE
index dfd91e7c4c0..7a3e96b90e2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -19,6 +19,10 @@ are:
     Michael Tokarev <mjt@corpit.ru>. Released under the GNU Lesser General
     Public License version 2.1.
 
+  - C-Ares, an asynchronous DNS client, located at deps/c-ares. Copyright by
+    the Massachusetts Institute of Technology; authored by Greg Hudson,
+    Daniel Stenberg and others. Released under an MIT license.
+
 Other external libraries are my own and all use the same license as Node.
 
 Node's license follows: