diff --git a/src/pocketmine/permission/BanList.php b/src/pocketmine/permission/BanList.php
index bbbc451340..ab0a12a272 100644
--- a/src/pocketmine/permission/BanList.php
+++ b/src/pocketmine/permission/BanList.php
@@ -101,9 +101,9 @@ class BanList{
 	 */
 	public function addBan(string $target, string $reason = null, \DateTime $expires = null, string $source = null) : BanEntry{
 		$entry = new BanEntry($target);
-		$entry->setSource($source != null ? $source : $entry->getSource());
+		$entry->setSource($source ?? $entry->getSource());
 		$entry->setExpires($expires);
-		$entry->setReason($reason != null ? $reason : $entry->getReason());
+		$entry->setReason($reason ?? $entry->getReason());
 
 		$this->list[$entry->getName()] = $entry;
 		$this->save();