diff --git a/Gemfile b/Gemfile
index e979abf83..4c8f4358f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -69,6 +69,9 @@ if File.exist?(database_file)
       when /mysql2/
         gem 'mysql2', '~> 0.5.0'
         gem "with_advisory_lock"
+      when /trilogy/
+        gem 'trilogy', '~> 2.9.0'
+        gem "with_advisory_lock"
       when /postgresql/
         gem 'pg', '~> 1.5.3'
       when /sqlite3/
diff --git a/lib/redmine/database.rb b/lib/redmine/database.rb
index b3cbdc661..13c92b8a4 100644
--- a/lib/redmine/database.rb
+++ b/lib/redmine/database.rb
@@ -58,7 +58,7 @@ module Redmine
 
       # Returns true if the database is MySQL
       def mysql?
-        /mysql/i.match?(ActiveRecord::Base.connection.adapter_name)
+        /mysql|trilogy/i.match?(ActiveRecord::Base.connection.adapter_name)
       end
 
       def mysql_version