diff --git a/preseed/debian/bookworm/preseed.gnome.uefi.cfg b/preseed/debian/bookworm/preseed.gnome.uefi.cfg
index e4d5c8a..02a5d75 100644
--- a/preseed/debian/bookworm/preseed.gnome.uefi.cfg
+++ b/preseed/debian/bookworm/preseed.gnome.uefi.cfg
@@ -231,7 +231,7 @@ d-i   partman-auto/expert_recipe                  string      \
                       label{ root }                           \
                       mountpoint{ / }                         \
               .                                               \
-              4000 7000 10000 ext4                            \
+              4000 7000 20000 ext4                            \
                       $lvmok{ }                               \
                       in_vg{ sys } lv_name{ lv_usr }          \
                       method{ format } format{ }              \