diff --git a/include/ftp/ssl.hpp b/include/ftp/ssl.hpp
index 8bab6a5..973887a 100644
--- a/include/ftp/ssl.hpp
+++ b/include/ftp/ssl.hpp
@@ -32,7 +32,7 @@ namespace ftp::ssl
 {
 
 using namespace boost::asio::ssl;
-using context_ptr = std::unique_ptr<boost::asio::ssl::context>;
+using context_ptr = std::unique_ptr<context>;
 
 /* ssl_session_resumption - Configures SSL session resumption. The SSL session
  * of control connection will be reused for data connections.