diff --git a/include/argparse/argparse.hpp b/include/argparse/argparse.hpp
index c614b5e..ec06ba2 100644
--- a/include/argparse/argparse.hpp
+++ b/include/argparse/argparse.hpp
@@ -30,11 +30,12 @@ SOFTWARE.
 */
 #pragma once
 
+#include <cerrno>
+
 #ifndef ARGPARSE_MODULE_USE_STD_MODULE
 #include <algorithm>
 #include <any>
 #include <array>
-#include <cerrno>
 #include <charconv>
 #include <cstdlib>
 #include <functional>
diff --git a/module/argparse.cppm b/module/argparse.cppm
index 625283e..c60edff 100644
--- a/module/argparse.cppm
+++ b/module/argparse.cppm
@@ -39,6 +39,7 @@ export module argparse;
 
 #ifdef ARGPARSE_MODULE_USE_STD_MODULE
 import std;
+import std.compat;
 
 extern "C++" {
 #include <argparse/argparse.hpp>