diff --git a/pages/site/releases/2.16.md b/pages/site/releases/2.16.md
index 4d95478..be120c5 100644
--- a/pages/site/releases/2.16.md
+++ b/pages/site/releases/2.16.md
@@ -30,6 +30,17 @@
 
 ## Important Notes
 
+### Known problem with schema upgrade
+
+When a gerrit site older than 2.15 is migrated to 2.16, then schema
+migration should be first performed to the latest 2.15 release.
+
+To upgrade to 2.15 latest release:
+
+``` sh
+  java -jar gerrit-2.15.latest.war init -d ${site_path}
+```
+
 ### Known problem with plugins and index
 
 Since 2.14.2 the plugins are loaded before online reindexing is started, so