diff --git a/README.md b/README.md
index 534c6c378..6052e2f91 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,11 @@ sudo make uninstall
 
 To clean Z3 you can delete the build directory and run the ``mk_make.py`` script again.
 
+## Building Z3 using CMake
+
+Z3 has an unofficial build system using CMake. Read the [README-CMake.md](README-CMake.md)
+file for details.
+
 ## Z3 bindings
 
 Z3 has bindings for various programming languages.