diff --git a/src/network/mcpe/NetworkSession.php b/src/network/mcpe/NetworkSession.php
index 68e6d517e..711415ecc 100644
--- a/src/network/mcpe/NetworkSession.php
+++ b/src/network/mcpe/NetworkSession.php
@@ -125,6 +125,7 @@ use function get_class;
 use function in_array;
 use function json_encode;
 use function ksort;
+use function strcasecmp;
 use function strlen;
 use function strtolower;
 use function substr;