diff --git a/src/gba/memory.c b/src/gba/memory.c
index c7cd86d26..fa279104f 100644
--- a/src/gba/memory.c
+++ b/src/gba/memory.c
@@ -1629,7 +1629,7 @@ void _pristineCow(struct GBA* gba) {
 	if (!gba->isPristine) {
 		return;
 	}
-#ifndef FIXED_ROM_BUFFER
+#if !defined(FIXED_ROM_BUFFER) && !defined(__wii__)
 	void* newRom = anonymousMemoryMap(SIZE_CART0);
 	memcpy(newRom, gba->memory.rom, gba->memory.romSize);
 	memset(((uint8_t*) newRom) + gba->memory.romSize, 0xFF, SIZE_CART0 - gba->memory.romSize);