diff -up test/Horde/Kolab/Storage/TestCase.php.old test/Horde/Kolab/Storage/TestCase.php
--- test/Horde/Kolab/Storage/TestCase.php.old	2014-08-16 18:22:51.556008063 +0200
+++ test/Horde/Kolab/Storage/TestCase.php	2014-08-16 18:25:17.171626554 +0200
@@ -655,8 +655,13 @@ extends PHPUnit_Framework_TestCase
 
     protected function getDefaultEventData($add = '')
     {
+        if (version_compare(PHP_VERSION, '5.4.0', 'lt')) {
+            $file = __DIR__ . '/fixtures/event.struct';
+        } else {
+            $file = __DIR__ . '/fixtures/event.struct.php54';
+        }
         return array(
-            'structure' => __DIR__ . '/fixtures/event.struct',
+            'structure' => $file,
             'parts' => array(
                 '2' => array(
                     'file' => __DIR__ . '/fixtures/event' . $add . '.xml.qp',
diff -up test/Horde/Kolab/Storage/fixtures/event.struct.php54.old test/Horde/Kolab/Storage/fixtures/event.struct.php54
--- test/Horde/Kolab/Storage/fixtures/event.struct.php54.old	2014-08-16 18:23:02.600054958 +0200
+++ test/Horde/Kolab/Storage/fixtures/event.struct.php54	2014-08-16 18:20:31.829414814 +0200
@@ -0,0 +1 @@
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
\ No newline at end of file