diff --git a/sql/database-migrate.txt b/sql/database-migrate.txt
index f3855da51d0d3b0d444e847860440b6bb6185bc1..acf2a145a854af925616c7b04a7c6bf81b94b08f 100644
--- a/sql/database-migrate.txt
+++ b/sql/database-migrate.txt
@@ -2438,3 +2438,8 @@ last_net_act,last_cpu_act,last_ext_act);
 			default NULL;
 
 1.311: Fix mistake in last revision. Skip to next entry.
+
+1.322: Add TinyOS as a supported OS in the os_info table:
+
+        alter table os_info change column OS OS enum('Unknown','Linux', \
+          'FreeBSD','NetBSD','OSKit','Windows','TinyOS','Other');