diff --git a/sql/mssql.sql b/sql/mssql.sql
index c54f1ab35..1a0587d97 100644
--- a/sql/mssql.sql
+++ b/sql/mssql.sql
@@ -209,7 +209,7 @@ WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW
 CREATE TABLE [dbo].[pubsub_item] (
         [nodeid] [bigint] NULL,
         [itemid] [varchar] (255) NOT NULL,
-        [publisher] [text] NOT NULL,
+        [publisher] [varchar] (250) NOT NULL,
         [creation] [varchar] (32) NOT NULL,
         [modification] [varchar] (32) NOT NULL,
         [payload] [text] NOT NULL DEFAULT ''