diff --git a/include/nod/DiscBase.hpp b/include/nod/DiscBase.hpp
index 3411b20..70d8276 100644
--- a/include/nod/DiscBase.hpp
+++ b/include/nod/DiscBase.hpp
@@ -236,7 +236,7 @@ public:
     return end();
   }
 
-  bool extractToDirectory(SystemStringView basePath, const ExtractionContext& ctx, Codepage_t codepage) const;
+  bool extractToDirectory(SystemStringView basePath, const ExtractionContext& ctx, Codepage_t codepage = CP_US_ASCII) const;
 };
 
 class IPartition {