diff --git a/src/blitter/Tiles.s b/src/blitter/Tiles.s
index 925584b..effe529 100644
--- a/src/blitter/Tiles.s
+++ b/src/blitter/Tiles.s
@@ -23,6 +23,7 @@ CopyTile
                 asl
                 asl
                 asl
+                asl
                 tay
 
                 sep   #$20              ; set the bank register
@@ -144,3 +145,4 @@ CopyTileLinear  ldal  tiledata+0,x
 
 
 
+