diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.IMemoryDomains.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.IMemoryDomains.cs
index 7a4c33a85b..b0bddd5501 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.IMemoryDomains.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/MGBAHawk.IMemoryDomains.cs
@@ -30,7 +30,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBA
 			mm.Add(_palram = new MemoryDomainIntPtr("PALRAM", le, IntPtr.Zero, 1024, true, 4));
 			mm.Add(_vram = new MemoryDomainIntPtr("VRAM", le, IntPtr.Zero, 96 * 1024, true, 4));
 			mm.Add(_oam = new MemoryDomainIntPtr("OAM", le, IntPtr.Zero, 1024, true, 4));
-			mm.Add(_rom = new MemoryDomainIntPtr("ROM", le, IntPtr.Zero, romsize, false, 4));
+			mm.Add(_rom = new MemoryDomainIntPtr("ROM", le, IntPtr.Zero, romsize, true, 4));
 			mm.Add(_sram = new MemoryDomainIntPtr("SRAM", le, IntPtr.Zero, 0, true, 4)); // size will be fixed in wireup
 			mm.Add(_cwram = new MemoryDomainDelegate("Combined WRAM", (256 + 32) * 1024, le, null, null, 4));