diff --git a/netoik-db.spec b/netoik-db.spec
index 46b42f7..a58522c 100644
--- a/netoik-db.spec
+++ b/netoik-db.spec
@@ -25,6 +25,9 @@ Install the database management system called postgresql with a predefined confi
 # Create sock directory if not existing
 chown postgres:postgres "%{_rundir}/postgresql"
 
+# Init cluster if necessary
+runuser --user=postgres -- if [ ! -d $PGDATA ]; then postgresql-setup --initdb; fi
+
 # Restart services
 systemctl daemon-reload
 systemctl reenable postgresql.service