diff --git a/dev/phpunit/PhpUnitWrapper_3_5.php b/dev/phpunit/PhpUnitWrapper_3_5.php
index 3085ad572..13974225c 100644
--- a/dev/phpunit/PhpUnitWrapper_3_5.php
+++ b/dev/phpunit/PhpUnitWrapper_3_5.php
@@ -20,12 +20,14 @@ class PhpUnitWrapper_3_5 extends PhpUnitWrapper {
 	 * Initialise the wrapper class.
 	 */
 	public function init() {
-		require_once 'PHP/CodeCoverage.php';
-		require_once 'PHP/CodeCoverage/Report/HTML.php';
+		if(!class_exists('PHPUnit_Framework_TestCase')) {
+			require_once 'PHP/CodeCoverage.php';
+			require_once 'PHP/CodeCoverage/Report/HTML.php';
 
-		require_once 'PHPUnit/Autoload.php';
+			require_once 'PHPUnit/Autoload.php';
 
-		require_once 'PHP/CodeCoverage/Filter.php';
+			require_once 'PHP/CodeCoverage/Filter.php';
+		}
 	}
 	
 	/**