diff --git a/nQuant.Master/PnnLABGAQuantizer.cs b/nQuant.Master/PnnLABGAQuantizer.cs
index f2075f1..0776c8b 100644
--- a/nQuant.Master/PnnLABGAQuantizer.cs
+++ b/nQuant.Master/PnnLABGAQuantizer.cs
@@ -57,7 +57,7 @@ public PnnLABGAQuantizer(PnnLABQuantizer pq, List<Bitmap> sources, int nMaxColor
 			minRatio = (hasSemiTransparency || nMaxColors < 64) ? .0111 : .85;
 			maxRatio = Math.Min(1.0, nMaxColors / ((nMaxColors < 64) ? 400.0 : 50.0));
             if (nMaxColors < 16)
-                maxRatio = .25;
+                maxRatio = .2;
             _dp = maxRatio < .1 ? 10000 : 100;
 		}