diff --git a/lib/haml/exec.rb b/lib/haml/exec.rb
index 0c01d6cc..4d6ed62a 100644
--- a/lib/haml/exec.rb
+++ b/lib/haml/exec.rb
@@ -144,11 +144,6 @@ END
           exit
         end
 
-        opts.on('-t', '--style NAME',
-                'Output style. Can be indented (default) or ugly.') do |name|
-          @options[:for_engine][:ugly] = true if name.to_sym == :ugly
-        end
-
         opts.on('-c', '--check', "Just check syntax, don't evaluate.") do
           @options[:check_syntax] = true
           @options[:output] = StringIO.new
@@ -211,6 +206,15 @@ END
         @name = "Haml"
       end
 
+      def set_opts(opts)
+        super
+
+        opts.on('-t', '--style NAME',
+                'Output style. Can be indented (default) or ugly.') do |name|
+          @options[:for_engine][:ugly] = true if name.to_sym == :ugly
+        end
+      end
+
       def process_result
         super
         input = @options[:input]