diff --git a/package.json b/package.json
index 4e9aa15..5214429 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "postcss": "^5.2.6",
     "postcss-less": "^0.15.0",
     "postcss-scss": "^0.4.0",
-    "postcss-selector-namespace": "^1.2.4",
+    "postcss-selector-namespace": "^1.2.8",
     "rsvp": "^3.2.1",
     "walk-sync": "^0.3.1"
   },
diff --git a/tests/acceptance/sass-test.js b/tests/acceptance/sass-test.js
index eefc68e..a8ae93e 100644
--- a/tests/acceptance/sass-test.js
+++ b/tests/acceptance/sass-test.js
@@ -44,3 +44,13 @@ test('BEM variant rule followed', function(assert) {
     assert.equal(find('[class$=__element--variant]').css('color'), 'rgb(0, 0, 5)');
   });
 });
+
+test('mixin psudo elements do not get scoped', function(assert) {
+  visit(`/${TYPE}`);
+
+  andThen(function() {
+    let item = find('[class$=__element--variant]');
+    item.addClass('mixin-extra');
+    assert.equal(item.css('color'), 'rgb(0, 0, 6)');
+  });
+});
diff --git a/tests/acceptance/scss-test.js b/tests/acceptance/scss-test.js
index 44e84a0..3a4a107 100644
--- a/tests/acceptance/scss-test.js
+++ b/tests/acceptance/scss-test.js
@@ -45,12 +45,12 @@ test('BEM variant rule followed', function(assert) {
   });
 });
 
-// test('mixin psudo elements do not get scoped', function(assert) {
-//   visit(`/${TYPE}`);
-//
-//   andThen(function() {
-//     let item = find('[class$=__element--variant]');
-//     item.addClass('mixin-extra');
-//     assert.equal(item.css('color'), 'rgb(0, 0, 6)');
-//   });
-// });
+test('mixin psudo elements do not get scoped', function(assert) {
+  visit(`/${TYPE}`);
+
+  andThen(function() {
+    let item = find('[class$=__element--variant]');
+    item.addClass('mixin-extra');
+    assert.equal(item.css('color'), 'rgb(0, 0, 6)');
+  });
+});
diff --git a/tests/dummy/app/components/sass/base-rules/styles.sass b/tests/dummy/app/components/sass/base-rules/styles.sass
index 814e97a..74bd027 100644
--- a/tests/dummy/app/components/sass/base-rules/styles.sass
+++ b/tests/dummy/app/components/sass/base-rules/styles.sass
@@ -1,3 +1,7 @@
+@mixin mixin()
+  &.mixin-extra
+    color: rgb(0, 0, 6)
+
 .base
   color: rgb(0, 0, 1)
 
@@ -15,3 +19,4 @@ span
 
     &--variant
       color: rgb(0, 0, 5)
+      @include mixin