diff --git a/composer.json b/composer.json
index ec86a38..55a554e 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
   "license": "GPL-2.0-or-later",
   "require": {
     "php": "^7.2",
-    "typo3/cms-core": "^9.5",
+    "typo3/cms-core": "^9.5 || ^10.4",
     "league/oauth2-client": "^2.0"
   },
   "autoload": {
diff --git a/ext_localconf.php b/ext_localconf.php
index fa4b35c..9fc8e9f 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -64,5 +64,5 @@
     }
 };
 
-$boot($_EXTKEY);
+$boot('oidc');
 unset($boot);
diff --git a/ext_tables.php b/ext_tables.php
index a34724c..9022205 100644
--- a/ext_tables.php
+++ b/ext_tables.php
@@ -12,5 +12,5 @@
     $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] = \Causal\Oidc\Hooks\DataHandler::class;
 };
 
-$boot($_EXTKEY);
+$boot('oidc');
 unset($boot);