diff --git a/runtime/syntax/ruby.yaml b/runtime/syntax/ruby.yaml
index 593fad52..9247b691 100644
--- a/runtime/syntax/ruby.yaml
+++ b/runtime/syntax/ruby.yaml
@@ -1,7 +1,7 @@
 filetype: ruby
 
 detect: 
-    filename: "\\.(rb|rake|gemspec)$|^(Gemfile|config.ru|Rakefile|Capfile|Vagrantfile|Guardfile)$"
+    filename: "\\.(rb|rake|gemspec)$|^(Gemfile|config.ru|Rakefile|Capfile|Vagrantfile|Guardfile|Appfile|Fastfile|Pluginfile|Podfile)$"
     header: "^#!.*/(env +)?ruby( |$)"
 
 rules: