diff --git a/product/ZSQLCatalog/SearchKey/FullTextKey.py b/product/ZSQLCatalog/SearchKey/FullTextKey.py
index 7dfbb19b6dcbad6e7c3445ce8a889848329ee656..c98ea62b5bf8e232a6a65822adb81dcbd9da5778 100644
--- a/product/ZSQLCatalog/SearchKey/FullTextKey.py
+++ b/product/ZSQLCatalog/SearchKey/FullTextKey.py
@@ -28,6 +28,7 @@
 #
 ##############################################################################
 
+from DefaultKey import DefaultKey
 from SearchKey import SearchKey
 from Products.ZSQLCatalog.Query.SimpleQuery import SimpleQuery
 from Products.ZSQLCatalog.SearchText import parse
@@ -36,7 +37,7 @@ from zope.interface.verify import verifyClass
 import re
 
 
-class FullTextKey(SearchKey):
+class FullTextKey(DefaultKey):
   """
     This SearchKey generates SQL fulltext comparisons.
   """