diff --git a/lexers/embedded/ruby.xml b/lexers/embedded/ruby.xml
index b47b1ab..baa7e43 100644
--- a/lexers/embedded/ruby.xml
+++ b/lexers/embedded/ruby.xml
@@ -12,6 +12,7 @@
     <filename>*.rbx</filename>
     <filename>*.duby</filename>
     <filename>Gemfile</filename>
+    <filename>Vagrantfile</filename>
     <mime_type>text/x-ruby</mime_type>
     <mime_type>application/x-ruby</mime_type>
     <dot_all>true</dot_all>