diff --git a/include/Nazara/Core/MemoryStream.hpp b/include/Nazara/Core/MemoryStream.hpp
index 465abf745..861d28d40 100644
--- a/include/Nazara/Core/MemoryStream.hpp
+++ b/include/Nazara/Core/MemoryStream.hpp
@@ -47,6 +47,14 @@ namespace Nz
 			ByteArray m_buffer;
 			UInt64 m_pos;
 	};
+
+	class AbstractHash;
+
+	inline bool HashAppend(AbstractHash* hash, const String& string);
+	NAZARA_CORE_API bool Serialize(SerializationContext& context, const String& string);
+	NAZARA_CORE_API bool Unserialize(UnserializationContext& context, String* string);
 }
 
+#include <Nazara/Core/MemoryStream.hpp>
+
 #endif // NAZARA_MEMORYSTREAM_HPP
diff --git a/include/Nazara/Core/MemoryStream.inl b/include/Nazara/Core/MemoryStream.inl
new file mode 100644
index 000000000..61b2f0bb4
--- /dev/null
+++ b/include/Nazara/Core/MemoryStream.inl
@@ -0,0 +1,15 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Core/Debug.hpp>
+
+namespace Nz
+{
+	inline bool HashAppend(AbstractHash* hash, const MemoryStream& stream)
+	{
+		return HashAppend(hash, stream.GetBuffer());
+	}
+}
+
+#include <Nazara/Core/DebugOff.hpp>