diff --git a/tests/Unit/Math/BigInteger/InternalTest.php b/tests/Unit/Math/BigInteger/InternalTest.php
index 878f7fc6..d62cab30 100644
--- a/tests/Unit/Math/BigInteger/InternalTest.php
+++ b/tests/Unit/Math/BigInteger/InternalTest.php
@@ -5,7 +5,7 @@
  * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
  */
 
-class Math_BigInteger_InternalTest extends Unit_Math_BigInteger_TestCase
+class Unit_Math_BigInteger_InternalTest extends Unit_Math_BigInteger_TestCase
 {
     static public function setUpBeforeClass()
     {