diff --git a/Configuration/TCA/Overrides/sys_file_metadata.php b/Configuration/TCA/Overrides/sys_file_metadata.php
index 12204fc..06b8634 100644
--- a/Configuration/TCA/Overrides/sys_file_metadata.php
+++ b/Configuration/TCA/Overrides/sys_file_metadata.php
@@ -4,39 +4,43 @@
 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 use TYPO3\CMS\Core\Utility\VersionNumberUtility;
 
-$columns = [
-	'tx_lottie_is_lottie_animation' => [
-		'exclude' => true,
-		'label' => 'LLL:EXT:lottie/Resources/Private/Language/locallang_db.xlf:sys_file_metadata.tx_lottie_is_lottie_animation',
-		'config' => [
-			'type' => 'check',
-			'items' => [
-				['', 1],
+call_user_func(function() {
+
+	$columns = [
+		'tx_lottie_is_lottie_animation' => [
+			'exclude' => true,
+			'label' => 'LLL:EXT:lottie/Resources/Private/Language/locallang_db.xlf:sys_file_metadata.tx_lottie_is_lottie_animation',
+			'config' => [
+				'type' => 'check',
+				'items' => [
+					['', 1],
+				],
 			],
+			'displayCond' => 'USER:'. \TheLine\Lottie\Backend\DisplayConditions::class .'->checkIfIsJsonFile',
 		],
-		'displayCond' => 'USER:'. \TheLine\Lottie\Backend\DisplayConditions::class .'->checkIfIsJsonFile',
-	],
-];
-
-if (
-	VersionNumberUtility::convertVersionNumberToInteger(
-		VersionNumberUtility::getNumericTypo3Version()
-	) >= 9000000
-) {
-	$columns['tx_lottie_is_lottie_animation']['config']['renderType'] = 'checkboxToggle';
-}
-
-
-ExtensionManagementUtility::addTCAcolumns(
-	'sys_file_metadata',
-	$columns
-);
-
-ExtensionManagementUtility::addToAllTCAtypes(
-	'sys_file_metadata',
-	implode(',', array_keys($columns)),
-	implode(',', [
-		File::FILETYPE_TEXT,
-		File::FILETYPE_APPLICATION
-	])
-);
+	];
+
+	if (
+		VersionNumberUtility::convertVersionNumberToInteger(
+			VersionNumberUtility::getNumericTypo3Version()
+		) >= 9000000
+	) {
+		$columns['tx_lottie_is_lottie_animation']['config']['renderType'] = 'checkboxToggle';
+	}
+
+
+	ExtensionManagementUtility::addTCAcolumns(
+		'sys_file_metadata',
+		$columns
+	);
+
+	ExtensionManagementUtility::addToAllTCAtypes(
+		'sys_file_metadata',
+		implode(',', array_keys($columns)),
+		implode(',', [
+			File::FILETYPE_TEXT,
+			File::FILETYPE_APPLICATION
+		])
+	);
+
+});
diff --git a/Configuration/TCA/Overrides/sys_template.php b/Configuration/TCA/Overrides/sys_template.php
index 0d12c3a..84bc86c 100644
--- a/Configuration/TCA/Overrides/sys_template.php
+++ b/Configuration/TCA/Overrides/sys_template.php
@@ -1,7 +1,13 @@
 <?php
 
-\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile(
-	'lottie',
-	'Configuration/TypoScript',
-	'EXT:lottie :: JavaScript includes for lottie-web'
-);
+use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
+
+call_user_func(function() {
+
+	ExtensionManagementUtility::addStaticFile(
+		'lottie',
+		'Configuration/TypoScript',
+		'EXT:lottie :: JavaScript includes for lottie-web'
+	);
+
+});
diff --git a/ext_localconf.php b/ext_localconf.php
index 51ef8b3..65f207b 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -1,7 +1,7 @@
 <?php
 defined('TYPO3_MODE') or die();
 
-call_user_func(function($extKey) {
+call_user_func(function() {
 
 	/** @var \TYPO3\CMS\Core\Resource\Rendering\RendererRegistry $rendererRegistry */
 	$rendererRegistry = \TYPO3\CMS\Core\Resource\Rendering\RendererRegistry::getInstance();
@@ -14,5 +14,4 @@
 	// which is only present in `textmedia` CType by default
 	$GLOBALS['TYPO3_CONF_VARS']['SYS']['mediafile_ext'] .= ',json';
 
-}, $_EXTKEY);
-
+});