diff --git a/templates/config/includes.installer/preseed.cfg.j2 b/templates/config/includes.installer/preseed.cfg.j2
index ce6f7e6..c2f7223 100644
--- a/templates/config/includes.installer/preseed.cfg.j2
+++ b/templates/config/includes.installer/preseed.cfg.j2
@@ -66,11 +66,12 @@ d-i pkgsel/upgrade select full-upgrade
 # installed, and what software you use. The default is not to report back,
 # but sending reports helps the project determine what software is most
 # popular and include it on CDs.
+popularity-contest popularity-contest/participate boolean false
 
 ### Boot loader installation
 # This is fairly safe to set, it makes grub install automatically to the MBR
 # if no other operating system is detected on the machine.
-#d-i grub-installer/only_debian boolean true
+d-i grub-installer/only_debian boolean true
 
 # This one makes grub-installer install to the MBR if it also finds some other
 # OS, which is less safe as it might not be able to boot that other OS.