diff --git a/doc-src/SASS_CHANGELOG.md b/doc-src/SASS_CHANGELOG.md
index 8fb816ad..ca218475 100644
--- a/doc-src/SASS_CHANGELOG.md
+++ b/doc-src/SASS_CHANGELOG.md
@@ -51,6 +51,14 @@ Several bug fixes and minor improvements have been made, including:
 * Displaying the expected strings as strings rather than regular expressions
   whenever possible.
 
+## 2.2.10 (Unreleased)
+
+* Add support for attribute selectors with spaces around the `=`.
+  For example:
+
+    a[href = http://google.com]
+      color: blue
+
 ## [2.2.9](http://github.com/nex3/haml/commit/2.2.9)
 
 There were no changes made to Sass between versions 2.2.8 and 2.2.9.
diff --git a/lib/sass/engine.rb b/lib/sass/engine.rb
index 225ff8ae..907b9eb1 100644
--- a/lib/sass/engine.rb
+++ b/lib/sass/engine.rb
@@ -108,7 +108,7 @@ module Sass
     MIXIN_INCLUDE_CHAR    = ?+
 
     # The regex that matches properties of the form <tt>name: prop</tt>.
-    PROPERTY_NEW_MATCHER = /^[^\s:"]+\s*[=:](\s|$)/
+    PROPERTY_NEW_MATCHER = /^[^\s:"\[]+\s*[=:](\s|$)/
 
     # The regex that matches and extracts data from
     # properties of the form <tt>name: prop</tt>.
diff --git a/test/sass/engine_test.rb b/test/sass/engine_test.rb
index aac3481b..080ad80c 100755
--- a/test/sass/engine_test.rb
+++ b/test/sass/engine_test.rb
@@ -758,6 +758,17 @@ foo {
 CSS
   end
 
+  def test_attribute_selector_with_spaces
+    assert_equal(<<CSS, render(<<SASS))
+a b[foo = bar] {
+  c: d; }
+CSS
+a
+  b[foo = bar]
+    c: d
+SASS
+  end
+
   def test_quoted_colon
     assert_equal(<<CSS, render(<<SASS))
 a b[foo="bar: baz"] {