@ -50,7 +50,7 @@ namespace SixLabors.ImageSharp.Formats.Png.Zlib
/// <summary>
/// Delegate to get more data once we've exhausted the current data remaining
/// </summary>
private Func<int> getData;
private readonly Func<int> getData;
/// Initializes a new instance of the <see cref="ZlibInflateStream"/> class.