diff --git a/contrib/blossom/concorde97/INCLUDE/linkern.h b/contrib/blossom/concorde97/INCLUDE/linkern.h
index fc3b6c2d33f5d13e10a20fe7f7918b36ed1d1864..dc8b46672dbd7ed5f1c8e81d8ec76bb0e65fe972 100644
--- a/contrib/blossom/concorde97/INCLUDE/linkern.h
+++ b/contrib/blossom/concorde97/INCLUDE/linkern.h
@@ -40,8 +40,8 @@ int
 /*                                                                         */
 /***************************************************************************/
 
-
-#define CC_TWO_LEVEL_FLIPPER
+#define CC_LINKED_LIST_FLIPPER
+//#define CC_TWO_LEVEL_FLIPPER
 /* #define BTREE_FLIPPER */
 
 #ifdef CC_LINKED_LIST_FLIPPER