--- a/DataSetBuilder.st	Fri Jan 12 18:39:48 2007 +0100
+++ b/DataSetBuilder.st	Fri Jan 12 18:41:33 2007 +0100
@@ -2839,7 +2839,7 @@
         ^ 'Row Selector'
     ].
     label := aColumn label.
-    label ifNil:[^ nil].
+    label isNil ifTrue:[^ nil].
 
     label isString ifTrue:[^ label].