diff --git a/PAM/ssh/include/rublon/configuration.hpp b/PAM/ssh/include/rublon/configuration.hpp
index 9e7abd0..30f03be 100644
--- a/PAM/ssh/include/rublon/configuration.hpp
+++ b/PAM/ssh/include/rublon/configuration.hpp
@@ -10,7 +10,6 @@
 #include <optional>
 #include <string>
 
-#include <cstddef>
 #include <memory_resource>
 #include <unordered_map>
 #include <utility>
@@ -212,7 +211,7 @@ class ConfigurationFactory {
     ConfigurationFactory() = default;
 
     std::optional< Configuration > systemConfig() {
-        std::optional< Configuration > conf{};
+        std::optional< Configuration > conf{Configuration{}};
         ConfigurationReader reader{};
         reader.loadFromFile("/etc/rublon.config");
         if(auto ok = reader.applyTo(conf.value()); not ok.has_value()) {