diff --git a/gnu/installer/newt/partition.scm b/gnu/installer/newt/partition.scm
index 8cce7da93b..2b22ac85b4 100644
--- a/gnu/installer/newt/partition.scm
+++ b/gnu/installer/newt/partition.scm
@@ -673,7 +673,8 @@ by pressing the Exit button.~%~%")))
           #:title (if guided?
                       (G_ "Guided partitioning")
                       (G_ "Manual partitioning"))
-          #:info-textbox-width 70
+          #:info-textbox-width 76         ;we need a lot of room for INFO-TEXT
+          #:listbox-height 12
           #:listbox-items (disk-items)
           #:listbox-item->text cdr
           #:sort-listbox-items? #f