diff --git a/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessorBase.cs b/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessorBase.cs
index b3c564edbd..4e6b7bec0e 100644
--- a/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessorBase.cs
+++ b/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessorBase.cs
@@ -50,7 +50,7 @@ namespace SixLabors.ImageSharp.Processing.Processors
             for (int index = 0; index < colorPalette.Length; index++)
             {
                 TPixel temp = colorPalette[index];
-                float distance = Vector4.Distance(vector, temp.ToVector4());
+                float distance = Vector4.DistanceSquared(vector, temp.ToVector4());
 
                 if (distance < leastDistance)
                 {