From 24e67289c89382cec78dd938dedd527d8c646e3c Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Mon, 25 Nov 2013 11:57:20 +0100
Subject: [PATCH] Bug fix

---
 plugins/dbms/mssqlserver/enumeration.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/dbms/mssqlserver/enumeration.py b/plugins/dbms/mssqlserver/enumeration.py
index 5131f2b45..c3b9a0229 100644
--- a/plugins/dbms/mssqlserver/enumeration.py
+++ b/plugins/dbms/mssqlserver/enumeration.py
@@ -311,7 +311,7 @@ class Enumeration(GenericEnumeration):
             colQuery = "%s%s" % (colCond, colCondParam)
             colQuery = colQuery % unsafeSQLIdentificatorNaming(column)
 
-            for db in dbs.keys():
+            for db in filter(None, dbs.keys()):
                 db = safeSQLIdentificatorNaming(db)
 
                 if conf.excludeSysDbs and db in self.excludeDbsList: