diff --git a/lib/libnx/include/nx/pfs.h b/lib/libnx/include/nx/pfs.h
index d0d79d0..2375d44 100644
--- a/lib/libnx/include/nx/pfs.h
+++ b/lib/libnx/include/nx/pfs.h
@@ -17,7 +17,8 @@ namespace nx
 	{
 		char signature[4];
 		le_uint32_t file_num;
-		le_uint64_t name_table_size;
+		le_uint32_t name_table_size;
+		byte_t padding[4];
 	};
 
 	struct sPfsFile
diff --git a/lib/libnx/include/nx/romfs.h b/lib/libnx/include/nx/romfs.h
new file mode 100644
index 0000000..ab34c01
--- /dev/null
+++ b/lib/libnx/include/nx/romfs.h
@@ -0,0 +1,35 @@
+#pragma once
+#include <string>
+#include <fnd/types.h>
+#include <crypto/aes.h>
+#include <crypto/sha.h>
+#include <fnd/ISerialiseableBinary.h>
+
+namespace nx
+{
+	namespace romfs
+	{
+		enum HeaderSectionIndex
+		{
+			DIR_HASHMAP_TABLE,
+			DIR_NODE_TABLE,
+			FILE_HASHMAP_TABLE,
+			FILE_NODE_TABLE,
+
+			SECTION_NUM
+		};
+	}
+	
+#pragma pack(push,1)
+	struct sRomfsHeader
+	{
+		le_uint64_t header_size;
+		struct sSection
+		{
+			le_uint64_t offset;
+			le_uint64_t size;
+		} sections[romfs::SECTION_NUM];
+		le_uint64_t data_offset;
+	};
+#pragma pack(pop)
+}