diff --git a/src/DocumentLibrary/DocumentStore.py b/src/DocumentLibrary/DocumentStore.py
index 726caeb..48a5b65 100644
--- a/src/DocumentLibrary/DocumentStore.py
+++ b/src/DocumentLibrary/DocumentStore.py
@@ -54,6 +54,7 @@
 from ZPublisher.Converters import type_converters
 import DLGlobals
 import Document
+from Products.PluginIndexes.TextIndex.Lexicon import Lexicon
 
 manage_addLibraryDocumentStoreForm = DTMLFile('dtml/AddDocumentStoreForm', globals())
 
@@ -146,7 +147,7 @@
 
         for name, index_class in self._defaultCatalogIndexes:
             if index_class is TextIndex:
-                self.Catalog.addIndex(name, index_class(name))
+                self.Catalog.addIndex(name, index_class(name, lexicon=Lexicon(useSplitter="UnicodeSplitter")))
             else:
                 self.Catalog.addIndex(name, index_class(name))
 
@@ -467,7 +468,7 @@
 
         if index_class is TextIndex:
             self.Catalog.addIndex(name, 
-                                  index_class(name))
+                                  index_class(name, lexicon=Lexicon(useSplitter='UnicodeSplitter')))
         else:
             self.Catalog.addIndex(name, index_class(name))