diff --git a/readme.md b/readme.md
index d0659038..33509fe1 100644
--- a/readme.md
+++ b/readme.md
@@ -61,7 +61,7 @@ Transpile trained [scikit-learn](https://github.com/scikit-learn/scikit-learn) e
             <td align="center"><a href="examples/classifier/DecisionTreeClassifier/js/basics.ipynb">✓</a></td>
             <td align="center"></td>
             <td align="center"><a href="examples/classifier/DecisionTreeClassifier/php/basics.ipynb">✓</a></td>
-            <td align="center"></td>
+            <td align="center">✓</td>
         </tr>
         <tr>
             <td><a href="http://scikit-learn.org/0.18/modules/generated/sklearn.ensemble.RandomForestClassifier.html">sklearn.ensemble.RandomForestClassifier</a></td>
diff --git a/sklearn_porter/classifier/DecisionTreeClassifier/__init__.py b/sklearn_porter/classifier/DecisionTreeClassifier/__init__.py
index b368bc9f..37736721 100644
--- a/sklearn_porter/classifier/DecisionTreeClassifier/__init__.py
+++ b/sklearn_porter/classifier/DecisionTreeClassifier/__init__.py
@@ -47,6 +47,18 @@ class DecisionTreeClassifier(Classifier):
             'arr':      '$classes[{0}] = {1}',
             'indent':   '    ',
             'join':     '; ',
+        },
+        'ruby': {
+            # 'init':     '{name} = {value}',
+            # 'type':     '{0}',
+            'if':       'if atts[{0}] {1} {2}',
+            'else':     'else',
+            'endif':    'end',
+            'arr':      'classes[{0}] = {1}',
+            # 'arr[]':    '{name} = [{values}]',
+            # 'arr[][]':  '{name} = [{values}]',
+            'indent':   '    ',
+            'join':     ' ',
         }
     }
     # @formatter:on
@@ -179,7 +191,7 @@ def create_tree(self):
             if self.n_features > 1 or (self.n_features == 1 and i >= 0):
                 feature_indices.append([str(j) for j in range(n_features)][i])
 
-        indentation = 1 if self.target_language in ['java', 'js', 'php'] else 0
+        indentation = 1 if self.target_language in ['java', 'js', 'php', 'ruby'] else 0
         return self.create_branches(
             self.model.tree_.children_left,
             self.model.tree_.children_right,
@@ -196,7 +208,7 @@ def create_method(self, class_name, method_name):
         :return out : string
             The built method as string.
         """
-        n_indents = 1 if self.target_language in ['java', 'js', 'php'] else 0
+        n_indents = 1 if self.target_language in ['java', 'js', 'php', 'ruby'] else 0
         branches = self.indent(self.create_tree(), n_indents=1)
         temp_method = self.temp('method', n_indents=n_indents, skipping=True)
         out = temp_method.format(class_name=class_name, method_name=method_name,
diff --git a/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/class.txt b/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/class.txt
new file mode 100644
index 00000000..62a9fc64
--- /dev/null
+++ b/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/class.txt
@@ -0,0 +1,8 @@
+class {class_name}
+	{method}
+end
+
+if ARGV.length == {n_features}
+    atts = ARGV.collect {{ |i| i.to_f }}
+	puts {class_name}.{method_name}(atts)
+end
\ No newline at end of file
diff --git a/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/method.txt b/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/method.txt
new file mode 100644
index 00000000..d751203b
--- /dev/null
+++ b/sklearn_porter/classifier/DecisionTreeClassifier/templates/ruby/method.txt
@@ -0,0 +1,7 @@
+def self.{method_name} (atts)
+	classes = Array.new({n_classes}, 0)
+	{branches}
+
+	pos = classes.each_with_index.select {{|e, i| e==classes.max}}.map &:last
+	return pos.min
+end
\ No newline at end of file
diff --git a/tests/classifier/DecisionTreeClassifier/DecisionTreeClassifierRubyTest.py b/tests/classifier/DecisionTreeClassifier/DecisionTreeClassifierRubyTest.py
new file mode 100644
index 00000000..cfcbf89d
--- /dev/null
+++ b/tests/classifier/DecisionTreeClassifier/DecisionTreeClassifierRubyTest.py
@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+
+from unittest import TestCase
+
+from sklearn.tree import DecisionTreeClassifier
+
+from ..Classifier import Classifier
+from ...language.Ruby import Ruby
+
+
+class DecisionTreeClassifierRubyTest(Ruby, Classifier, TestCase):
+
+    def setUp(self):
+        super(DecisionTreeClassifierRubyTest, self).setUp()
+        self.mdl = DecisionTreeClassifier(random_state=0)
+
+    def tearDown(self):
+        super(DecisionTreeClassifierRubyTest, self).tearDown()