diff --git a/superx/WEB-INF/conf/edustore/db/install/schluesseltabellen/sx_stylesheets_fuellen.sql b/superx/WEB-INF/conf/edustore/db/install/schluesseltabellen/sx_stylesheets_fuellen.sql
index f239366..26fd2e0 100755
--- a/superx/WEB-INF/conf/edustore/db/install/schluesseltabellen/sx_stylesheets_fuellen.sql
+++ b/superx/WEB-INF/conf/edustore/db/install/schluesseltabellen/sx_stylesheets_fuellen.sql
@@ -183,7 +183,9 @@ delete from sx_mask_style where maskeninfo_id=71560;
 update sx_stylesheets set stylesheet_type='XSL',
 usage_resultset_data='T'
 where relation='table'
-and trim(filename) like '%.xsl';
+and trim(filename) like '%.xsl'
+and stylesheet_type is null
+;
 
 
 update sx_stylesheets set stylesheet_type='JRXML',