diff --git a/PAM/ssh/include/rublon/std_experimental.hpp b/PAM/ssh/include/rublon/std_experimental.hpp
index d79ee5d..18a042c 100644
--- a/PAM/ssh/include/rublon/std_experimental.hpp
+++ b/PAM/ssh/include/rublon/std_experimental.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <memory>
+#include <fstream>
 
 #include <experimental/filesystem>
 #include <experimental/map>