diff --git a/preseed/debian/bullseye/preseed.computenode.cfg b/preseed/debian/bullseye/preseed.computenode.cfg
index 2df6c69..fcc4c82 100644
--- a/preseed/debian/bullseye/preseed.computenode.cfg
+++ b/preseed/debian/bullseye/preseed.computenode.cfg
@@ -195,7 +195,7 @@ d-i   partman-auto/expert_recipe                  string      \
                       method{ lvm }                           \
                       vg_name{ sys }                          \
               .                                               \
-              25600 90000 20480 ext4                          \
+              16384 90000 20480 ext4                          \
                       $lvmok{ }                               \
                       in_vg{ sys } lv_name{ lv_root }         \
                       method{ format } format{ }              \