diff --git a/src/Makefile.include b/src/Makefile.include
index dae7db780..01b47d1aa 100644
--- a/src/Makefile.include
+++ b/src/Makefile.include
@@ -8,7 +8,7 @@ endif
 AM_CPPFLAGS =  $(INCLUDES) \
   -I$(top_builddir)/src/obj \
   $(BDB_CPPFLAGS) \
-  $(BOOST_INCLUDES)
+  $(BOOST_CPPFLAGS) $(BOOST_INCLUDES)
 AM_CPPFLAGS += $(LEVELDB_CPPFLAGS)
 AM_LDFLAGS = $(PTHREAD_CFLAGS)