diff --git a/scripts/install-multi-user.sh b/scripts/install-multi-user.sh
index f93be9d3a..4b65783a2 100644
--- a/scripts/install-multi-user.sh
+++ b/scripts/install-multi-user.sh
@@ -744,7 +744,6 @@ build-users-group = $NIX_BUILD_GROUP_NAME
 
 max-jobs = $NIX_USER_COUNT
 cores = 1
-sandbox = false
 EOF
     _sudo "to place the default nix daemon configuration (part 2)" \
           install -m 0664 "$SCRATCH/nix.conf" /etc/nix/nix.conf