diff --git a/pages/common/ruby.md b/pages/common/ruby.md
index 6773ecb5b..7649856bc 100644
--- a/pages/common/ruby.md
+++ b/pages/common/ruby.md
@@ -19,6 +19,10 @@
 
 `ruby -c {{script.rb}}`
 
+- Start the built-in HTTP server on port 8080 in the current directory:
+
+`ruby -run -e httpd`
+
 - Show the version of Ruby you are using:
 
 `ruby -v`