diff --git a/Dockerfile b/Dockerfile
index d0b91b4..78173db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,6 @@
 FROM thallian/confd-env:latest
 
 ENV PGDATA=/var/lib/postgresql/data
-ENV S6_KEEP_ENV=1
 
 RUN apk add --no-cache \
 	postgresql14 \
diff --git a/rootfs/bin/initdb b/rootfs/bin/initdb
index c4412d3..ea0a192 100755
--- a/rootfs/bin/initdb
+++ b/rootfs/bin/initdb
@@ -1,5 +1,5 @@
 #!/command/with-contenv sh
 
-if [ ! -f "/var/lib/postgresql/data/PG_VERSION" ]; then
-    s6-setuidgid postgres initdb --username=postgres
+if [ ! -f "$PGDATA/PG_VERSION" ]; then
+    initdb --username=postgres
 fi