diff --git a/taro-ls.tal b/taro-ls.tal
index b7fdedd..47d53ac 100644
--- a/taro-ls.tal
+++ b/taro-ls.tal
@@ -319,7 +319,7 @@ JMP2r
   ( check bounds )
   .Mouse/x DEI2 .Screen/width DEI2 #0008 SUB2 GTH2 ,&done JCN
   .Mouse/y DEI2 ,&y LDR2 LTH2 ,&done JCN
-  .Mouse/y DEI2 ,&y LDR2 [ STHkr LB_HEIGHT LDZ #00 SWP #30 SFT2 ] ADD2 GTH2 ,&done JCN
+  .Mouse/y DEI2 ,&y LDR2 [ STHkr LB_HEIGHT LDZ #00 SWP #30 SFT2 ] ADD2 #0001 SUB2 GTH2 ,&done JCN
   
   ( check scrollwheel )
   .Mouse/scrolly DEI2 #0000 EQU2 ,&no_scroll JCN