diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index 7b3b6628..9bf918d9 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -1842,7 +1842,7 @@ class SSH2
         $this->encrypt = $this->_encryption_algorithm_to_crypt_instance($encrypt);
         if ($this->encrypt) {
             if ($this->crypto_engine) {
-                $this->encrypt->setEngine($this->crypto_engine);
+                $this->encrypt->setPreferredEngine($this->crypto_engine);
             }
             if ($this->encrypt->block_size) {
                 $this->encrypt_block_size = $this->encrypt->block_size;
@@ -1866,7 +1866,7 @@ class SSH2
         $this->decrypt = $this->_encryption_algorithm_to_crypt_instance($decrypt);
         if ($this->decrypt) {
             if ($this->crypto_engine) {
-                $this->decrypt->setEngine($this->crypto_engine);
+                $this->decrypt->setPreferredEngine($this->crypto_engine);
             }
             if ($this->decrypt->block_size) {
                 $this->decrypt_block_size = $this->decrypt->block_size;