diff --git a/bt5/erp5_full_text_sphinxse_catalog/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/SQLCatalog_makeFullTextQuery.xml b/bt5/erp5_full_text_sphinxse_catalog/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/SQLCatalog_makeFullTextQuery.xml
index 675502eeb3521082f86e3e643eb8f3bcfdb0ff11..6e0ebe21e269c56b1f7ddd9a39657078c83928e9 100644
--- a/bt5/erp5_full_text_sphinxse_catalog/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/SQLCatalog_makeFullTextQuery.xml
+++ b/bt5/erp5_full_text_sphinxse_catalog/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/SQLCatalog_makeFullTextQuery.xml
@@ -61,8 +61,9 @@ defaut_dict = {\'mode\': \'ext2\', # full text search mode\n
               }\n
 for key, item in defaut_dict.items():\n
   operator = \';%s\' %key\n
-  if operator not in value:\n
+  if operator not in value and value not in (\'\', None):\n
     value = \'%s%s=%s\' %(value, operator, item)\n
+\n
 query = Query(**{\'sphinxse_query\': value})\n
 return query\n
 </string> </value>
diff --git a/bt5/erp5_full_text_sphinxse_catalog/bt/revision b/bt5/erp5_full_text_sphinxse_catalog/bt/revision
index b5045cc4046dbc1d7cafa4c603fd3cdf35dc5dde..8fdd954df9831dfd29ceec0d74829b02f3f5d8c3 100644
--- a/bt5/erp5_full_text_sphinxse_catalog/bt/revision
+++ b/bt5/erp5_full_text_sphinxse_catalog/bt/revision
@@ -1 +1 @@
-21
\ No newline at end of file
+22
\ No newline at end of file