diff --git a/src/pocketmine/network/protocol/LoginPacket.php b/src/pocketmine/network/protocol/LoginPacket.php
index 4d1e347b1..284591d89 100644
--- a/src/pocketmine/network/protocol/LoginPacket.php
+++ b/src/pocketmine/network/protocol/LoginPacket.php
@@ -41,7 +41,11 @@ class LoginPacket extends DataPacket{
 	public function decode(){
 		$this->protocol = $this->getInt();
 
-		$str = zlib_decode($this->get($this->getInt()), 1024 * 1024 * 64); //Max 64MB
+		if($this->protocol !== Info::CURRENT_PROTOCOL){
+			return; //Do not attempt to decode for non-accepted protocols
+		}
+		$str = zlib_decode($this->get($this->getInt()), 1024 * 1024 * 64);
+
 		$this->setBuffer($str, 0);
 
 		$chainData = json_decode($this->get($this->getLInt()));