diff --git a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.IMemoryDomains.cs b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.IMemoryDomains.cs
index fdaa55729f..9dca7df95a 100644
--- a/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.IMemoryDomains.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Atari/2600/Atari2600.IMemoryDomains.cs
@@ -20,7 +20,7 @@ namespace BizHawk.Emulation.Cores.Atari.Atari2600
 					16,
 					MemoryDomain.Endian.Little,
 					addr => _tia.ReadMemory((ushort)addr, true),
-					(addr, value) => this._tia.WriteMemory((ushort)addr, value), 1),
+					(addr, value) => this._tia.WriteMemory((ushort)addr, value, true), 1),
 				new MemoryDomainDelegate(
 					"PIA",
 					1024,