diff --git a/typo3/sysext/sys_action/Configuration/TCA/sys_action.php b/typo3/sysext/sys_action/Configuration/TCA/sys_action.php
index 50ffd716496b5c346ac3fa413392741fa7c6d40f..b3f0a2a0f0a281db93665fcf414185581d95c4d5 100644
--- a/typo3/sysext/sys_action/Configuration/TCA/sys_action.php
+++ b/typo3/sysext/sys_action/Configuration/TCA/sys_action.php
@@ -129,7 +129,7 @@ return [
             'label' => 'LLL:EXT:sys_action/Resources/Private/Language/locallang_tca.xlf:sys_action.t3_tables',
             'config' => [
                 'type' => 'select',
-                'renderType' => 'selectMultipleSideBySide',
+                'renderType' => 'selectSingle',
                 'special' => 'tables',
                 'items' => [
                     ['', '']