diff --git a/site/_docs/troubleshooting.md b/site/_docs/troubleshooting.md
index 5d7b1ad9..bdc7804f 100644
--- a/site/_docs/troubleshooting.md
+++ b/site/_docs/troubleshooting.md
@@ -28,6 +28,7 @@ On Red Hat, CentOS, and Fedora systems you can do this by running:
 
 {% highlight bash %}
 sudo yum install ruby-devel
+sudo yum group install "C Development Tools and Libraries"
 {% endhighlight %}
 
 On [NearlyFreeSpeech](https://www.nearlyfreespeech.net/) you need to run the