diff --git a/src/gba/renderers/gl.c b/src/gba/renderers/gl.c
index 5a8521d81..7dfb40287 100644
--- a/src/gba/renderers/gl.c
+++ b/src/gba/renderers/gl.c
@@ -1126,7 +1126,7 @@ void GBAVideoGLRendererDrawSprite(struct GBAVideoGLRenderer* renderer, struct GB
 
 	int align = GBAObjAttributesAIs256Color(sprite->a) && !GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt);
 	unsigned charBase = (BASE_TILE >> 1) + (GBAObjAttributesCGetTile(sprite->c) & ~align) * 0x10;
-	int stride = GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt) ? (width >> 3) : (0x40 >> !GBAObjAttributesAIs256Color(sprite->a));
+	int stride = GBARegisterDISPCNTIsObjCharacterMapping(renderer->dispcnt) ? (width >> 3) : (0x20 >> GBAObjAttributesAGet256Color(sprite->a));
 
 	if (spriteY + height >= 256) {
 		spriteY -= 256;