diff --git a/src/Error.cs b/src/Error.cs
index 927ffc6..f19d149 100644
--- a/src/Error.cs
+++ b/src/Error.cs
@@ -5,7 +5,7 @@
 
 namespace UnmanagedResult;
 
-public readonly struct Error<TEnum> : IError
+public readonly struct Error<TEnum> : ICodeError<TEnum>
     where TEnum : unmanaged, Enum
 {
     public TEnum Code { get; }
diff --git a/src/ICodeError.cs b/src/ICodeError.cs
new file mode 100644
index 0000000..ff5ba7e
--- /dev/null
+++ b/src/ICodeError.cs
@@ -0,0 +1,12 @@
+// Copyright (c) 2026 Viktor Stojanović. All rights reserved.
+// Licensed under the MIT License. See LICENSE.txt in the project root for license information.
+
+using System;
+
+namespace UnmanagedResult;
+
+public interface ICodeError<TEnum> : IError
+    where TEnum : unmanaged, Enum
+{
+    public TEnum Code { get; }
+}