diff --git a/doc/02-getting-started.md b/doc/02-getting-started.md
index f8664cbc5..ba0e26af9 100644
--- a/doc/02-getting-started.md
+++ b/doc/02-getting-started.md
@@ -621,6 +621,7 @@ RHEL/CentOS 6:
 
     # yum install postgresql-server postgresql
     # chkconfig postgresql on
+    # service postgresql initdb
     # service postgresql start
 
 RHEL/CentOS 7:
@@ -634,12 +635,14 @@ SUSE:
 
     # zypper install postgresql postgresql-server
     # chkconfig postgresql on
+    # service postgresql initdb
     # service postgresql start
 
 FreeBSD:
 
     # pkg install postgresql93-server
     # sysrc postgresql_enable=yes
+    # service postgresql initdb
     # service postgresql start
 
 Alpine Linux: