diff --git a/Classes/Service/ExtensionSettingsService.php b/Classes/Service/ExtensionSettingsService.php
index ae0e9c7d9ceb404dd6f5ed3fea0740ab1df01ca9..fcd452f2fcd35e7c30a5ebd9488aeb5a0afd0cde 100644
--- a/Classes/Service/ExtensionSettingsService.php
+++ b/Classes/Service/ExtensionSettingsService.php
@@ -59,7 +59,7 @@ class ExtensionSettingsService {
 				$configuration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['sg_youtube']);
 			}
 		} else {
-			$configuration = $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sg_youtube'];
+			$configuration = $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sg_youtube'] ?? [];
 		}
 
 		$setting = '';