diff --git a/00-tables.sql b/00-tables.sql
index 8383cce430685743852be806cec9aeeb98e055e7..5613d85fd6223553836c1e032d66a26a8c992871 100644
--- a/00-tables.sql
+++ b/00-tables.sql
@@ -51,6 +51,7 @@ CREATE TABLE node (
     -- async_trans tells us whether a node is hosted on a cold storage and has to be transferred asynchronously
     async_trans            BOOLEAN       default false,
     sticky                 BOOLEAN       default false,
+    immutable              BOOLEAN       default false,
     -- id of the blocking job running on the node (used to compute busy state)
     job_id                 VARCHAR       default NULL,
     creator_id             VARCHAR       default NULL,