diff --git a/src/LogDbClient.php b/src/LogDbClient.php
index daafa83..b0801c5 100644
--- a/src/LogDbClient.php
+++ b/src/LogDbClient.php
@@ -2,6 +2,10 @@
 
 namespace LogDb\Client;
 
+use function socket_close;
+use function socket_create;
+use function socket_sendto;
+
 class LogDbClient
 {