diff --git a/ugbc/src/hw/pc1403/plot.asm b/ugbc/src/hw/pc1403/plot.asm
index 7dbb8a72c..9bca3c102 100755
--- a/ugbc/src/hw/pc1403/plot.asm
+++ b/ugbc/src/hw/pc1403/plot.asm
@@ -117,7 +117,7 @@ CALCPOSGR2:
 CALCPOSGY:
     LIP 0x06
     EXAM
-    LIP 0x05
+    LIP 0x07
     LIA 0x30
     EXAM