diff --git a/app/SymfonyRequirements.php b/app/SymfonyRequirements.php
index <HASH>..<HASH> 100644
--- a/app/SymfonyRequirements.php
+++ b/app/SymfonyRequirements.php
@@ -413,7 +413,7 @@ class SymfonyRequirements extends RequirementCollection
 
         if (version_compare($installedPhpVersion, self::REQUIRED_PHP_VERSION, '>=')) {
           $this->addRequirement(
-            (in_array(date_default_timezone_get(), \DateTimeZone::listIdentifiers())),
+            (in_array(date_default_timezone_get(), DateTimeZone::listIdentifiers())),
             sprintf('Default timezone is deprecated (%s)', date_default_timezone_get()),
             'Fix your <strong>php.ini</strong> file (list of deprecated timezones http://us.php.net/manual/en/timezones.others.php).'
           );
removed a backslash to avoid problem with PHP <I>