diff --git a/tests/modules/core/lib/Auth/Process/GenerateAffiliationTest.php b/tests/modules/core/lib/Auth/Process/GenerateAffiliationTest.php
index d1b17e8a47fe0241f8eb3e4390f25a4af92dd08a..a947b469b416f3f04181cd09afd16750becc4b27 100644
--- a/tests/modules/core/lib/Auth/Process/GenerateAffiliationTest.php
+++ b/tests/modules/core/lib/Auth/Process/GenerateAffiliationTest.php
@@ -14,7 +14,7 @@ class Test_Core_Auth_Process_GenerateAffiliation extends PHPUnit_Framework_TestC
      * @return array  The state array after processing.
      */
     private static function processFilter(array $config, array $request) {
-        $filter = new sspmod_core_Auth_Process_GenerateAffiliation($config, NULL);
+        $filter = new sspmod_core_Auth_Process_GenerateAffiliation($config, null);
         $filter->process($request);
         return $request;
     }
@@ -137,4 +137,4 @@ class Test_Core_Auth_Process_GenerateAffiliation extends PHPUnit_Framework_TestC
         $this->assertArrayNotHasKey('eduPersonAffiliation', $attributes);
         $this->assertEquals($attributes['test'], array('source'));
     }
-}
\ No newline at end of file
+}