diff --git a/include/ssl_key_handler.hpp b/include/ssl_key_handler.hpp
index dbc2720..daf42c4 100644
--- a/include/ssl_key_handler.hpp
+++ b/include/ssl_key_handler.hpp
@@ -3,8 +3,11 @@
 
 #pragma once
 
+#include <openssl/crypto.h>
+
 #include <boost/asio/ssl/context.hpp>
 
+#include <memory>
 #include <optional>
 #include <string>