diff --git a/include/boost/predef/architecture.h b/include/boost/predef/architecture.h
index b6adfdd..c7d0f24 100644
--- a/include/boost/predef/architecture.h
+++ b/include/boost/predef/architecture.h
@@ -11,6 +11,7 @@ http://www.boost.org/LICENSE_1_0.txt)
 #include <boost/predef/architecture/alpha.h>
 #include <boost/predef/architecture/amd64.h>
 #include <boost/predef/architecture/arm.h>
+#include <boost/predef/architecture/blackfin.h>
 #include <boost/predef/architecture/convex.h>
 #include <boost/predef/architecture/ia64.h>
 #include <boost/predef/architecture/m68k.h>
diff --git a/include/boost/predef/endian.h b/include/boost/predef/endian.h
index eb3fa5f..deb2381 100644
--- a/include/boost/predef/endian.h
+++ b/include/boost/predef/endian.h
@@ -144,7 +144,8 @@ information and acquired knowledge:
 #   endif
 #   if BOOST_ARCH_AMD64 || \
         BOOST_ARCH_IA64 || \
-        BOOST_ARCH_X86
+        BOOST_ARCH_X86 || \
+        BOOST_ARCH_BLACKFIN
 #       undef BOOST_ENDIAN_LITTLE_BYTE
 #       define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE
 #   endif