diff --git a/Ryujinx.HLE/HOS/Services/FspSrv/IFile.cs b/Ryujinx.HLE/HOS/Services/FspSrv/IFile.cs
index eb456d5511..3cedf4feba 100644
--- a/Ryujinx.HLE/HOS/Services/FspSrv/IFile.cs
+++ b/Ryujinx.HLE/HOS/Services/FspSrv/IFile.cs
@@ -31,12 +31,14 @@ namespace Ryujinx.HLE.HOS.Services.FspSrv
             Path      = LibHac.Fs.PathTools.Normalize(path);
         }
 
-        // Read(u32, u64 offset, u64 size) -> (u64 out_size, buffer<u8, 0x46, 0> out_buf)
+        // Read(u32 readOption, u64 offset, u64 size) -> (u64 out_size, buffer<u8, 0x46, 0> out_buf)
         public long Read(ServiceCtx context)
         {
             long position = context.Request.ReceiveBuff[0].Position;
 
-            long zero   = context.RequestData.ReadInt64();
+            int readOption = context.RequestData.ReadInt32();
+            context.RequestData.BaseStream.Position += 4;
+
             long offset = context.RequestData.ReadInt64();
             long size   = context.RequestData.ReadInt64();
 
@@ -51,12 +53,14 @@ namespace Ryujinx.HLE.HOS.Services.FspSrv
             return 0;
         }
 
-        // Write(u32, u64 offset, u64 size, buffer<u8, 0x45, 0>)
+        // Write(u32 writeOption, u64 offset, u64 size, buffer<u8, 0x45, 0>)
         public long Write(ServiceCtx context)
         {
             long position = context.Request.SendBuff[0].Position;
 
-            long zero   = context.RequestData.ReadInt64();
+            int writeOption = context.RequestData.ReadInt32();
+            context.RequestData.BaseStream.Position += 4;
+
             long offset = context.RequestData.ReadInt64();
             long size   = context.RequestData.ReadInt64();
 
diff --git a/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystem.cs b/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystem.cs
index 18a9f1d2b7..9e772213be 100644
--- a/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystem.cs
+++ b/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystem.cs
@@ -45,12 +45,14 @@ namespace Ryujinx.HLE.HOS.Services.FspSrv
             _provider = provider;
         }
 
-        // CreateFile(u32 mode, u64 size, buffer<bytes<0x301>, 0x19, 0x301> path)
+        // CreateFile(u32 createOption, u64 size, buffer<bytes<0x301>, 0x19, 0x301> path)
         public long CreateFile(ServiceCtx context)
         {
             string name = ReadUtf8String(context);
 
-            int  mode = context.RequestData.ReadInt32();
+            int createOption = context.RequestData.ReadInt32();
+            context.RequestData.BaseStream.Position += 4;
+
             long size = context.RequestData.ReadInt64();
 
             if (name == null)
@@ -70,7 +72,7 @@ namespace Ryujinx.HLE.HOS.Services.FspSrv
 
             try
             {
-                _provider.CreateFile(name, size, (CreateFileOptions)mode);
+                _provider.CreateFile(name, size, (CreateFileOptions)createOption);
             }
             catch (DirectoryNotFoundException)
             {