diff --git a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.ISettable.cs b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.ISettable.cs
index e171164df2..2c17efed1c 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.ISettable.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.ISettable.cs
@@ -123,7 +123,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
 				else
 				{
 					// use quickNES's deemph calculator
-					for (int c = 0; c < 64; c++)
+					for (int c = 0; c < 64 * 8; c++)
 					{
 						int a = c & 63;
 						byte[] inp = { (byte)pal[a, 0], (byte)pal[a, 1], (byte)pal[a, 2] };