diff --git a/src/ImageSharp/Formats/Png/PngChunkFilter.cs b/src/ImageSharp/Formats/Png/PngChunkFilter.cs
index f859d44da..04f27fb73 100644
--- a/src/ImageSharp/Formats/Png/PngChunkFilter.cs
+++ b/src/ImageSharp/Formats/Png/PngChunkFilter.cs
@@ -39,6 +39,6 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <summary>
         /// All possible optimizations.
         /// </summary>
-        ExcludeAll = ExcludePhysicalChunk | ExcludeGammaChunk | ExcludeExifChunk | ExcludeTextChunks
+        ExcludeAll = ~None
     }
 }