diff --git a/NDecrypt.N3DS/CIATool.cs b/NDecrypt.N3DS/CIATool.cs
index 011d190..96f2633 100644
--- a/NDecrypt.N3DS/CIATool.cs
+++ b/NDecrypt.N3DS/CIATool.cs
@@ -69,8 +69,8 @@ namespace NDecrypt.N3DS
             try
             {
                 // Open the read and write on the same file for inplace processing
-                using BinaryReader reader = new BinaryReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
-                using BinaryWriter writer = new BinaryWriter(File.Open(filename, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite));
+                using var reader = new BinaryReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
+                using var writer = new BinaryWriter(File.Open(filename, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite));
                 
                 // Deserialize the CIA information
                 var cia = Serializer.ReadCIA(reader);
diff --git a/NDecrypt.Nitro/DSTool.cs b/NDecrypt.Nitro/DSTool.cs
index 9a8b50c..68fca22 100644
--- a/NDecrypt.Nitro/DSTool.cs
+++ b/NDecrypt.Nitro/DSTool.cs
@@ -39,8 +39,8 @@ namespace NDecrypt.Nitro
             try
             {
                 // Open the read and write on the same file for inplace processing
-                using BinaryReader reader = new BinaryReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
-                using BinaryWriter writer = new BinaryWriter(File.Open(filename, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite));
+                using var reader = new BinaryReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
+                using var writer = new BinaryWriter(File.Open(filename, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite));
 
                 // Deserialize the cart information
                 Cart? cart = Serializer.ReadCart(reader);