Index: doc/example-scripts/tk-spread.tcl
===================================================================
diff -u -r7899713fc59e73e74af1586fa84b0b690bb9b2e7 -r71e18053ef7dd9a53f11d14f3a91b8a1091e90bb
--- doc/example-scripts/tk-spread.tcl	(.../tk-spread.tcl)	(revision 7899713fc59e73e74af1586fa84b0b690bb9b2e7)
+++ doc/example-scripts/tk-spread.tcl	(.../tk-spread.tcl)	(revision 71e18053ef7dd9a53f11d14f3a91b8a1091e90bb)
@@ -31,7 +31,7 @@
    #
    # Use the nx callback trait 
    #
-   :require trait nx::traits::callback
+   :require trait nx::trait::callback
    
    #
    # The method "cell" hides the internal respresentation and sets a