diff --git a/rc/base/ruby.kak b/rc/base/ruby.kak
index 473e5209..d01ef470 100644
--- a/rc/base/ruby.kak
+++ b/rc/base/ruby.kak
@@ -4,7 +4,7 @@
 # Detection
 # ‾‾‾‾‾‾‾‾‾
 
-hook global BufCreate .*(([.](rb))|(irbrc)|(pryrc)|(Capfile|[.]cap)|(Gemfile)|(Guardfile)|(Rakefile|[.]rake)|(Thorfile|[.]thor)|(Vagrantfile)) %{
+hook global BufCreate .*(([.](rb))|(irbrc)|(pryrc)|(Capfile|[.]cap)|(Gemfile|[.]gemspec)|(Guardfile)|(Rakefile|[.]rake)|(Thorfile|[.]thor)|(Vagrantfile)) %{
     set-option buffer filetype ruby
 }