diff --git a/lib/rouge/lexers/ruby.rb b/lib/rouge/lexers/ruby.rb
index c3a77ec32a..85a4e00ee0 100644
--- a/lib/rouge/lexers/ruby.rb
+++ b/lib/rouge/lexers/ruby.rb
@@ -297,7 +297,7 @@ def self.detect?(text)
           (
             [\p{L}_]\p{Word}*[!?]? |
             \*\*? | [-+]@? | [/%&\|^`~] | \[\]=? |
-            <<? | >>? | <=>? | >= | ===?
+            <=>? | <<? | >>? | >= | ===?
           )
         )x do |m|
           puts "matches: #{[m[0], m[1], m[2], m[3]].inspect}" if @debug
diff --git a/spec/lexers/ruby_spec.rb b/spec/lexers/ruby_spec.rb
index 1ade145b3c..9c35486d51 100644
--- a/spec/lexers/ruby_spec.rb
+++ b/spec/lexers/ruby_spec.rb
@@ -89,6 +89,20 @@
           ['Literal.Number.Float', '20.4e+8']
       end
     end
+
+    describe 'method definition' do
+      it 'identifies comparable method' do
+        assert_tokens_equal "def <=>(o); end",
+          ["Keyword", "def"],
+          ["Text", " "],
+          ["Name.Function", "<=>"],
+          ["Punctuation", "("],
+          ["Name", "o"],
+          ["Punctuation", ");"],
+          ["Text", " "],
+          ["Keyword", "end"]
+      end
+    end
   end
 
   describe 'guessing' do