diff --git a/include/boost/preprocessor/iterate.hpp b/include/boost/preprocessor/iterate.hpp
index 276e5b4..2faf46a 100644
--- a/include/boost/preprocessor/iterate.hpp
+++ b/include/boost/preprocessor/iterate.hpp
@@ -21,8 +21,6 @@
 # define BOOST_PP_ITERATION_DEPTH_LIMIT 5
 # define BOOST_PP_ITERATION_LIMIT 256
 #
-# define BOOST_PP_DEFAULT_START 0
-#
 # define BOOST_PP_ITERATION_DEPTH() 0
 #
 # define BOOST_PP_ITERATION() BOOST_PP_DETAIL_CAT2(BOOST_PP_ITERATION_, BOOST_PP_ITERATION_DEPTH())