diff --git a/html/migrate.or.upgrade.iredadmin.html b/html/migrate.or.upgrade.iredadmin.html
index 7beae850..cfc01e7e 100644
--- a/html/migrate.or.upgrade.iredadmin.html
+++ b/html/migrate.or.upgrade.iredadmin.html
@@ -72,9 +72,11 @@ example, please replace x.y.z by the real file name. For example,
   server as root user (for MySQL/MariaDB, it's <code>root</code> user, for PostgreSQL,
   it's <code>postgres</code> user) to alter SQL table <code>iredadmin.log</code> with below SQL command:</p>
 <ul>
-<li>For MySQL/MariaDB: <pre>sql&gt; ALTER TABLE log MODIFY COLUMN ip VARCHAR(40) NOT NULL DEFAULT '';
+<li>For OpenLDAP/MySQL/MariaDB backends: <pre>sql&gt; USE iredadmin;
+sql&gt; ALTER TABLE log MODIFY COLUMN ip VARCHAR(40) NOT NULL DEFAULT '';
 sql&gt; ALTER TABLE log MODIFY COLUMN event VARCHAR(20) NOT NULL DEFAULT '';</pre></li>
-<li>For PostgreSQL: <pre>sql&gt; ALTER TABLE log ALTER COLUMN ip TYPE VARCHAR(40);
+<li>For PostgreSQL: <pre>sql&gt; \c iredadmin;
+sql&gt; ALTER TABLE log ALTER COLUMN ip TYPE VARCHAR(40);
 sql&gt; ALTER TABLE log ALTER COLUMN event TYPE VARCHAR(20);</pre></li>
 </ul>
 </li>
diff --git a/upgrade/0-migrate.or.upgrade.iredadmin.md b/upgrade/0-migrate.or.upgrade.iredadmin.md
index 05b0b540..0921b64a 100644
--- a/upgrade/0-migrate.or.upgrade.iredadmin.md
+++ b/upgrade/0-migrate.or.upgrade.iredadmin.md
@@ -50,9 +50,11 @@ example, please replace x.y.z by the real file name. For example,
   server as root user (for MySQL/MariaDB, it's `root` user, for PostgreSQL,
   it's `postgres` user) to alter SQL table `iredadmin.log` with below SQL command:
 
-    * For MySQL/MariaDB: <pre>sql> ALTER TABLE log MODIFY COLUMN ip VARCHAR(40) NOT NULL DEFAULT '';
+    * For OpenLDAP/MySQL/MariaDB backends: <pre>sql> USE iredadmin;
+sql> ALTER TABLE log MODIFY COLUMN ip VARCHAR(40) NOT NULL DEFAULT '';
 sql> ALTER TABLE log MODIFY COLUMN event VARCHAR(20) NOT NULL DEFAULT '';</pre>
-    * For PostgreSQL: <pre>sql> ALTER TABLE log ALTER COLUMN ip TYPE VARCHAR(40);
+    * For PostgreSQL: <pre>sql> \c iredadmin;
+sql> ALTER TABLE log ALTER COLUMN ip TYPE VARCHAR(40);
 sql> ALTER TABLE log ALTER COLUMN event TYPE VARCHAR(20);</pre>
 
 That's all. If it doesn't work for you, please post a new topic in our