diff --git a/engine/overworld/movement.asm b/engine/overworld/movement.asm
index e08da61a..20de17a1 100644
--- a/engine/overworld/movement.asm
+++ b/engine/overworld/movement.asm
@@ -117,7 +117,7 @@ UpdateNPCSprite:
 	dec a
 	add a
 	ld hl, wMapSpriteData
-	add l
+	add l ; should be adc
 	ld l, a
 	ld a, [hl]        ; read movement byte 2
 	ld [wCurSpriteMovement2], a