diff --git a/ccm-core/sql/ccm-core/upgrade/postgres/6.5.2-6.5.3/clob_message.sql b/ccm-core/sql/ccm-core/upgrade/postgres/6.5.2-6.5.3/clob_message.sql
index 872ee77a1..39de948ad 100755
--- a/ccm-core/sql/ccm-core/upgrade/postgres/6.5.2-6.5.3/clob_message.sql
+++ b/ccm-core/sql/ccm-core/upgrade/postgres/6.5.2-6.5.3/clob_message.sql
@@ -19,7 +19,7 @@
 
 
 
-alter table messages add large_body text NOT NULL;
+alter table messages add large_body text NOT NULL DEFAULT ' ';
 
 update messages set large_body = body;