diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 5e8c121f..b5360a3a 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -1260,7 +1260,7 @@ class SSH2
         $c2s_compression_algorithms = $preferred['client_to_server']['comp'] ??
             SSH2::getSupportedCompressionAlgorithms();
 
-        $kex_algorithms = array_merge($kex_algorithms, array('ext-info-c'));
+        $kex_algorithms = array_merge($kex_algorithms, ['ext-info-c']);
 
         // some SSH servers have buggy implementations of some of the above algorithms
         switch (true) {