diff --git a/docker/admin/pid1.bash b/docker/admin/pid1.bash
index a8ff6ae..5df1270 100755
--- a/docker/admin/pid1.bash
+++ b/docker/admin/pid1.bash
@@ -2,6 +2,8 @@
 
 set -euo pipefail
 
+tee -a /etc/hosts >/dev/null <<< "127.0.0.1 admin"
+
 groupadd -g "$(stat -c %g "$PWD")" -o -p '!' -r riju
 useradd -u "$(stat -c %u "$PWD")" -g "$(stat -c %g "$PWD")" -o -p '!' -m -N -l -s /usr/bin/bash -G sudo riju