diff --git a/lib/core/settings.py b/lib/core/settings.py
index d97c90178..672b5596c 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -135,7 +135,7 @@ PYVERSION = sys.version.split()[0]
 MSSQL_SYSTEM_DBS = ( "Northwind", "model", "msdb", "pubs", "tempdb" )
 MYSQL_SYSTEM_DBS = ( "information_schema", "mysql" )                   # Before MySQL 5.0 only "mysql"
 PGSQL_SYSTEM_DBS = ( "information_schema", "pg_catalog", "pg_toast" )
-ORACLE_SYSTEM_DBS = ( "SYSTEM", "SYSAUX" )                              # These are TABLESPACE_NAME
+ORACLE_SYSTEM_DBS = ( "SYSTEM", "SYSAUX", "SYS" )                      # These are TABLESPACE_NAME
 SQLITE_SYSTEM_DBS = ( "sqlite_master", "sqlite_temp_master" )
 ACCESS_SYSTEM_DBS = ( "MSysAccessObjects", "MSysACEs", "MSysObjects", "MSysQueries", "MSysRelationships", "MSysAccessStorage",\
                         "MSysAccessXML", "MSysModules", "MSysModules2" )