--- a/ListView.st	Thu Jul 30 06:49:25 2015 +0200
+++ b/ListView.st	Sun Aug 09 07:20:03 2015 +0100
@@ -1517,7 +1517,7 @@
     ].
     
     sz := endLine - startLine + 1.
-    sz < 1 ifTrue:[^ nil].
+    sz < 1 ifTrue:[^ ''].
 
     text := StringCollection new:sz.