diff --git a/index.md b/index.md
index d024e1b..3c3a06c 100644
--- a/index.md
+++ b/index.md
@@ -316,7 +316,7 @@ color by default via `NO_COLOR`.
 | [Arcanist](https://github.com/phacility/arcanist) | `arc --no-ansi COMMAND` ([Docs](http://manpages.ubuntu.com/manpages/xenial/man1/arc.1.html)) |
 | [Bundler](https://bundler.io/) | `bundle COMMAND --no-color` ([Docs](https://bundler.io/v1.15/man/bundle.1.html)) |
 | [Chalk](https://github.com/chalk/chalk) | `export FORCE_COLOR=0` ([Docs](https://github.com/chalk/chalk#supportscolor)) |
-| [CMake](https://cmake.org/) | Set `CMAKE_COLOR_MAKEFILE` to `OFF` ([Docs](https://cmake.org/cmake/help/latest/variable/CMAKE_COLOR_MAKEFILE.html)) |
+| [CMake](https://cmake.org/) | Set `CMAKE_COLOR_DIAGNOSTICS` to `OFF` ([Docs](https://cmake.org/cmake/help/latest/variable/CMAKE_COLOR_DIAGNOSTICS.html)) |
 | [Cocoapods](https://cocoapods.org/) | `pod COMMAND --no-ansi` ([Docs](https://guides.cocoapods.org/terminal/commands.html#pod_install)) |
 | [Composer](https://getcomposer.org/) | `composer --no-ansi` ([Docs](https://getcomposer.org/doc/03-cli.md#global-options)) |
 | [FFmpeg](https://ffmpeg.org/) | `export AV_LOG_FORCE_NOCOLOR=true` ([Docs](https://ffmpeg.org/ffmpeg.html#toc-Generic-options)) |