diff --git a/gui/m291/src/m291.tal b/gui/m291/src/m291.tal
index 1090d2a..643fe99 100644
--- a/gui/m291/src/m291.tal
+++ b/gui/m291/src/m291.tal
@@ -4,7 +4,7 @@
 |00 @System &vector $2 &expansion $2 &wst $1 &rst $1 &metadata $2 &r $2 &g $2 &b $2 &debug $1 &state $1
 |20 @Screen &vector $2 &width $2 &height $2 &auto $2 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
 |80 @Controller &vector $2 &button $1 &key $1
-|90 @Mouse &vector $2 &x $2 &y $2 &state $5 &scrolly &scrolly-hb $1 &scrolly-lb $1
+|90 @Mouse &vector $2 &x $2 &y $2 &state $6 &scrolly &scrolly-hb $1 &scrolly-lb $1
 |a0 @File &vector $2 &success $1 &success-lb $1 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
 |c0 @DateTime &year $2 &month $1 &day $1 &hour $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1