diff --git a/init.rb b/init.rb
index 053784f..3183c38 100644
--- a/init.rb
+++ b/init.rb
@@ -1,9 +1,12 @@
-Haml::init_rails(binding) unless defined? Haml::Template
-require 'standardista'
-require 'standardista/implicit_tags'
+if defined? Haml
+  Haml::init_rails(binding) unless defined? Haml::Template
 
-config.after_initialize do
-  unless :xhtml == Haml::Template::options[:format]
-    require 'standardista/rails_override'
+  require 'standardista'
+  require 'standardista/implicit_tags'
+
+  config.after_initialize do
+    unless :xhtml == Haml::Template::options[:format]
+      require 'standardista/rails_override'
+    end
   end
 end