diff --git a/src/LibHac.Nand/NandPartition.cs b/src/LibHac.Nand/NandPartition.cs
index 16406371..22fff573 100644
--- a/src/LibHac.Nand/NandPartition.cs
+++ b/src/LibHac.Nand/NandPartition.cs
@@ -4,7 +4,7 @@ using DiscUtils.Fat;
 
 namespace LibHac.Nand
 {
-    public class NandPartition : IFileSystem
+    public class NandPartition : IFileSystemOld
     {
         public FatFileSystem Fs { get; }
 
diff --git a/src/LibHac/FileSystem.cs b/src/LibHac/FileSystem.cs
index 6c1f9755..d2286e93 100644
--- a/src/LibHac/FileSystem.cs
+++ b/src/LibHac/FileSystem.cs
@@ -4,7 +4,7 @@ using System.IO;
 
 namespace LibHac
 {
-    public class FileSystem : IFileSystem
+    public class FileSystem : IFileSystemOld
     {
         public string Root { get; }
 
diff --git a/src/LibHac/IFileSystem.cs b/src/LibHac/IFileSystemOld.cs
similarity index 92%
rename from src/LibHac/IFileSystem.cs
rename to src/LibHac/IFileSystemOld.cs
index 27d7aeab..84b650d4 100644
--- a/src/LibHac/IFileSystem.cs
+++ b/src/LibHac/IFileSystemOld.cs
@@ -2,7 +2,7 @@
 
 namespace LibHac
 {
-    public interface IFileSystem
+    public interface IFileSystemOld
     {
         bool FileExists(string path);
         bool DirectoryExists(string path);
diff --git a/src/LibHac/SwitchFs.cs b/src/LibHac/SwitchFs.cs
index a97788c0..93d29957 100644
--- a/src/LibHac/SwitchFs.cs
+++ b/src/LibHac/SwitchFs.cs
@@ -12,7 +12,7 @@ namespace LibHac
     public class SwitchFs : IDisposable
     {
         public Keyset Keyset { get; }
-        public IFileSystem Fs { get; }
+        public IFileSystemOld Fs { get; }
         public string ContentsDir { get; }
         public string SaveDir { get; }
 
@@ -21,7 +21,7 @@ namespace LibHac
         public Dictionary<ulong, Title> Titles { get; } = new Dictionary<ulong, Title>();
         public Dictionary<ulong, Application> Applications { get; } = new Dictionary<ulong, Application>();
 
-        public SwitchFs(Keyset keyset, IFileSystem fs)
+        public SwitchFs(Keyset keyset, IFileSystemOld fs)
         {
             Fs = fs;
             Keyset = keyset;
@@ -232,7 +232,7 @@ namespace LibHac
             }
         }
 
-        internal static IStorage OpenSplitNcaStorage(IFileSystem fs, string path)
+        internal static IStorage OpenSplitNcaStorage(IFileSystemOld fs, string path)
         {
             var files = new List<string>();
             var storages = new List<IStorage>();