diff --git a/src/gba/renderers/video-software.c b/src/gba/renderers/video-software.c
index a3424da99..2e62fa8b9 100644
--- a/src/gba/renderers/video-software.c
+++ b/src/gba/renderers/video-software.c
@@ -636,7 +636,7 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
 	union GBATextMapData mapData;
 
 	unsigned yBase = inY & 0xF8;
-	if (background->size & 2) {
+	if (background->size == 2) {
 		yBase += inY & 0x100;
 	} else if (background->size == 3) {
 		yBase += (inY & 0x100) << 1;