diff --git a/typo3/sysext/install/Classes/SystemEnvironment/Check.php b/typo3/sysext/install/Classes/SystemEnvironment/Check.php
index 1d716f7da80cec9777c0ffa4420648a1c8e06bbb..cb0e7c2a2363c4006f051af54412969e06baa0e2 100644
--- a/typo3/sysext/install/Classes/SystemEnvironment/Check.php
+++ b/typo3/sysext/install/Classes/SystemEnvironment/Check.php
@@ -65,6 +65,7 @@ class Check implements CheckInterface
         'gd',
         'hash',
         'json',
+        'PDO',
         'session',
         'SPL',
         'standard',