diff --git a/spec/indentation-spec.js b/spec/indentation-spec.js
index 694b47af..b85dd700 100644
--- a/spec/indentation-spec.js
+++ b/spec/indentation-spec.js
@@ -29,7 +29,7 @@
       expect(parseInt($p1.css('margin-left'))).toBe(0);
       return expect(parseInt($p2.css('margin-left'))).toBe(0);
     });
-    return it('should indent list when pressing tab in ul', function() {
+    it('should indent list when pressing tab in ul', function() {
       var $li, $li1, $li2, $ul, range;
       editor = spec.generateSimditor({
         content: '<ul>\n  <li>item 1</li>\n  <li>item 2</li>\n  <li>item 3</li>\n</ul>'
@@ -52,6 +52,20 @@
       expect($li1.parentsUntil(editor.body, 'ul').length).toBe(1);
       return expect($li2.parentsUntil(editor.body, 'ul').length).toBe(1);
     });
+    return it('should insert two spaces while pressing tab in code block', function() {
+      var $pre, range;
+      editor = spec.generateSimditor({
+        content: '<pre><code>var test = 1;</code></pre>',
+        toolbar: ['code']
+      });
+      editor.focus();
+      $pre = editor.body.find('> pre');
+      range = document.createRange();
+      editor.selection.setRangeAtStartOf($pre, range);
+      expect($pre.html()).toBe('var test = 1;');
+      editor.indentation.indent();
+      return expect($pre.html()).toBe('&nbsp;&nbsp;var test = 1;');
+    });
   });
 
 }).call(this);
diff --git a/spec/src/indentation-spec.coffee b/spec/src/indentation-spec.coffee
index a727a3b0..09cc7f3b 100644
--- a/spec/src/indentation-spec.coffee
+++ b/spec/src/indentation-spec.coffee
@@ -59,3 +59,19 @@ describe 'A Simditor instance with indentation manager', ->
     editor.indentation.indent(true)
     expect($li1.parentsUntil(editor.body, 'ul').length).toBe(1)
     expect($li2.parentsUntil(editor.body, 'ul').length).toBe(1)
+
+  it 'should insert two spaces while pressing tab in code block', ->
+    editor = spec.generateSimditor
+      content: '''
+        <pre><code>var test = 1;</code></pre>
+      '''
+      toolbar: ['code']
+    editor.focus()
+
+    $pre = editor.body.find '> pre'
+    range = document.createRange()
+    editor.selection.setRangeAtStartOf $pre, range
+
+    expect($pre.html()).toBe('var test = 1;')
+    editor.indentation.indent()
+    expect($pre.html()).toBe('&nbsp;&nbsp;var test = 1;')