diff --git a/src/gba/renderers/software-obj.c b/src/gba/renderers/software-obj.c
index 354d8f671..397e84f48 100644
--- a/src/gba/renderers/software-obj.c
+++ b/src/gba/renderers/software-obj.c
@@ -148,7 +148,8 @@ int GBAVideoSoftwareRendererPreprocessSprite(struct GBAVideoSoftwareRenderer* re
 	int32_t x = (uint32_t) GBAObjAttributesBGetX(sprite->b) << 23;
 	x >>= 23;
 	uint16_t* vramBase = &renderer->d.vram[BASE_TILE >> 1];
-	unsigned charBase = (GBAObjAttributesCGetTile(sprite->c) & ~GBAObjAttributesAGet256Color(sprite->a)) * 0x20;
+	bool align = GBAObjAttributesAIs256Color(sprite->a) && !GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt);
+	unsigned charBase = (GBAObjAttributesCGetTile(sprite->c) & ~align) * 0x20;
 	if (GBARegisterDISPCNTGetMode(renderer->dispcnt) >= 3 && GBAObjAttributesCGetTile(sprite->c) < 512) {
 		return 0;
 	}