diff --git a/src/Element.php b/src/Element.php
index 80fd327..11f5b6e 100644
--- a/src/Element.php
+++ b/src/Element.php
@@ -16,8 +16,6 @@ class Element
 
     protected $content;
 
-    // protected $extends;
-
     protected $attributes;
 
     protected $omitEndTag = false;
diff --git a/src/Html/Elements/HtmlElement.php b/src/Html/Elements/HtmlElement.php
index df35577..d513308 100644
--- a/src/Html/Elements/HtmlElement.php
+++ b/src/Html/Elements/HtmlElement.php
@@ -116,9 +116,6 @@ function($member) use (&$ordered, &$order) {
 
     private function isKnownElement()
     {
-        if (strlen($this->extends) > 0) {
-            return (in_array($this->extends, Elements::all()));
-        }
         return (in_array($this->element, Elements::all()));
     }
 
diff --git a/tests/element/ElementTest.php b/tests/Element/ElementTest.php
similarity index 100%
rename from tests/element/ElementTest.php
rename to tests/Element/ElementTest.php
diff --git a/tests/uikit/CompoundTest.php b/tests/UIKit/CompoundTest.php
similarity index 100%
rename from tests/uikit/CompoundTest.php
rename to tests/UIKit/CompoundTest.php
diff --git a/tests/uikit/FormControlsTest.php b/tests/UIKit/FormControlsTest.php
similarity index 100%
rename from tests/uikit/FormControlsTest.php
rename to tests/UIKit/FormControlsTest.php
diff --git a/tests/uikit/PageTest.php b/tests/UIKit/PageTest.php
similarity index 100%
rename from tests/uikit/PageTest.php
rename to tests/UIKit/PageTest.php
diff --git a/tests/uikit/SimpleTest.php b/tests/UIKit/SimpleTest.php
similarity index 100%
rename from tests/uikit/SimpleTest.php
rename to tests/UIKit/SimpleTest.php