diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
index acd448b27f..0a6a7d3508 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
@@ -33,7 +33,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 
 		//volatile state
 		public ByteBuffer chr_regs_1k = new ByteBuffer(8);
-		ByteBuffer prg_regs_8k = new ByteBuffer(4);
+		public ByteBuffer prg_regs_8k = new ByteBuffer(4);
 
 		//configuration
 		public enum EMMC3Type