diff --git a/lam/lib/baseModule.inc b/lam/lib/baseModule.inc
index b3c49cf96..764b8d11f 100644
--- a/lam/lib/baseModule.inc
+++ b/lam/lib/baseModule.inc
@@ -1,5 +1,6 @@
 <?php
 
+use LAM\JOB\Job;
 use LAM\PDF\PDFEntry;
 use LAM\PDF\PDFLabelValue;
 use LAM\PDF\PDFTable;
@@ -2322,6 +2323,7 @@ abstract class baseModule {
 	 * Returns a list of jobs that can be run.
 	 *
 	 * @param LAMConfig $config configuration
+	 * @return Job[] jobs
 	 */
 	public function getSupportedJobs(&$config) {
 		return [];
diff --git a/lam/lib/modules/freeRadius.inc b/lam/lib/modules/freeRadius.inc
index d46c1938e..549b0649d 100644
--- a/lam/lib/modules/freeRadius.inc
+++ b/lam/lib/modules/freeRadius.inc
@@ -762,10 +762,7 @@ class freeRadius extends baseModule {
 	}
 
 	/**
-	 * Returns a list of jobs that can be run.
-	 *
-	 * @param LAMConfig $config configuration
-	 * @return array list of jobs
+	 * {@inheritDoc}
 	 */
 	public function getSupportedJobs(&$config) {
 		return [
@@ -835,15 +832,7 @@ if (interface_exists('\LAM\JOB\Job', false)) {
 		}
 
 		/**
-		 * Checks if a user is expired.
-		 *
-		 * @param integer $jobID job ID
-		 * @param array $options job settings
-		 * @param PDO $pdo PDO
-		 * @param DateTime $now current time
-		 * @param array $policyOptions list of policy options by getPolicyOptions()
-		 * @param array $user user attributes
-		 * @param boolean $isDryRun just do a dry run, nothing is modified
+		 * {@inheritDoc}
 		 */
 		protected function checkSingleUser($jobID, $options, &$pdo, $now, $policyOptions, $user, $isDryRun) {
 			$expireTime = DateTime::createFromFormat('d M Y H:i', $user['radiusexpiration'][0], new DateTimeZone('UTC'));
diff --git a/lam/lib/modules/shadowAccount.inc b/lam/lib/modules/shadowAccount.inc
index 1f71fd3eb..71bd5c93e 100644
--- a/lam/lib/modules/shadowAccount.inc
+++ b/lam/lib/modules/shadowAccount.inc
@@ -752,9 +752,9 @@ class shadowAccount extends baseModule implements passwordService, AccountStatus
 	 * Sets the expiration date of this account.
 	 * If all parameters are null, the expiration date will be removed.
 	 *
-	 * @param string|null $year year (e.g. 2040)
-	 * @param string|null $month month (e.g. 8)
-	 * @param string|null $day day (e.g. 27)
+	 * @param int|null $year year (e.g. 2040)
+	 * @param int|null $month month (e.g. 8)
+	 * @param int|null $day day (e.g. 27)
 	 */
 	public function setExpirationDate($year, $month, $day) {
 		if (($year == null) && ($month == null) && ($day == null)) {
@@ -824,10 +824,7 @@ class shadowAccount extends baseModule implements passwordService, AccountStatus
 	}
 
 	/**
-	 * Returns a list of jobs that can be run.
-	 *
-	 * @param LAMConfig $config configuration
-	 * @return array list of jobs
+	 * {@inheritDoc}
 	 */
 	public function getSupportedJobs(&$config) {
 		return [
diff --git a/lam/lib/modules/windowsUser.inc b/lam/lib/modules/windowsUser.inc
index 7bd4788f4..314a45eaf 100644
--- a/lam/lib/modules/windowsUser.inc
+++ b/lam/lib/modules/windowsUser.inc
@@ -3382,7 +3382,7 @@ class windowsUser extends baseModule implements passwordService, AccountStatusPr
 			// room number
 			if (!$this->isBooleanConfigOptionSet('windowsUser_hideroomnumber', true)) {
 				$this->mapSimpleUploadField($rawAccounts, $ids, $partialAccounts, $i, 'windowsUser_roomNumber',
-					'roomnumber', null, null, $errors, '/;[ ]*/');
+					'roomnumber', null, [], $errors, '/;[ ]*/');
 			}
 			// carLicense
 			if (!$this->isBooleanConfigOptionSet('windowsUser_hidecarLicense', true)) {
@@ -4627,10 +4627,7 @@ class windowsUser extends baseModule implements passwordService, AccountStatusPr
 	}
 
 	/**
-	 * Returns a list of jobs that can be run.
-	 *
-	 * @param LAMConfig $config configuration
-	 * @return array list of jobs
+	 * {@inheritDoc}
 	 */
 	public function getSupportedJobs(&$config) {
 		return [
diff --git a/phpstan.neon b/phpstan.neon
index b5a9f5ed4..5b1fcb6d8 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -56,6 +56,7 @@ parameters:
 		- '#Call to .*method .* on an unknown class LAM\\DB\\CronDatabase.*#'
 		- '#.* has invalid type LAM\\ENV\\.*#'
 		- '#.* has invalid type LAM\\DB\\.*#'
+		- '#.* has invalid return type LAM\\JOB\\.*#'
 		- '#Call to an undefined method baseModule::getBackupEmail\(\).#'
 		- '#Call to an undefined method baseModule::getMembers\(\).#'
 		- '#Call to an undefined method baseModule::getNextGIDs\(\).#'