diff --git a/lib/card/CardGciFolder.cpp b/lib/card/CardGciFolder.cpp
index ec4f379..a7be3cb 100644
--- a/lib/card/CardGciFolder.cpp
+++ b/lib/card/CardGciFolder.cpp
@@ -1,5 +1,7 @@
 #include "CardGciFolder.hpp"
 
+#include <cstring>
+
 #include <filesystem>
 #include "../fs_helper.hpp"