diff --git a/README.md b/README.md
index 167287e..05119f5 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,11 @@ is available in [include/boost/mp11_single.hpp](include/boost/mp11_single.hpp).
 ## Supported compilers
 
 * g++ 4.7 or later
-* clang 3.5 or later
+* clang++ 3.5 or later
 * Visual Studio 2013, 2015, 2017
 
+Tested on [Travis](https://travis-ci.org/pdimov/mp11/) and [Appveyor](https://ci.appveyor.com/project/pdimov/mp11/).
+
 ## Documentation
 
 [Overview](doc/mp11/overview.adoc)