diff --git a/config/database.yml.example b/config/database.yml.example
index 6b0849602..9fdccac06 100644
--- a/config/database.yml.example
+++ b/config/database.yml.example
@@ -4,6 +4,8 @@
 
 production:
   adapter: mysql2
+  # You can also use "trilogy", an adapter for MySQL-compatible servers.
+  # adapter: trilogy
   database: redmine
   host: localhost
   username: root
@@ -19,6 +21,7 @@ production:
 
 development:
   adapter: mysql2
+  # adapter: trilogy
   database: redmine_development
   host: localhost
   username: root
@@ -33,6 +36,7 @@ development:
 # Do not set this db to the same as development or production.
 test:
   adapter: mysql2
+  # adapter: trilogy
   database: redmine_test
   host: localhost
   username: root