diff --git a/ext/sockets/tests/bug51958.phpt b/ext/sockets/tests/bug51958.phpt
index e5db68340cf..afccd6ce23d 100644
--- a/ext/sockets/tests/bug51958.phpt
+++ b/ext/sockets/tests/bug51958.phpt
@@ -9,7 +9,7 @@ if (!defined('IPPROTO_IPV6')) {
 	die('skip IPv6 not available.');
 }
 if (PHP_OS != "WINNT")
-	die('skip test relies Winsock's error code for WSAEWOULDBLOCK/EAGAIN');
+	die('skip test relies Winsock\'s error code for WSAEWOULDBLOCK/EAGAIN');
 --FILE--
 <?php
 $listenfd = socket_create(AF_INET6, SOCK_STREAM, SOL_TCP);