diff --git a/Makefile.inc.in b/Makefile.inc.in
index f41ba2c72..af8e57a96 100644
--- a/Makefile.inc.in
+++ b/Makefile.inc.in
@@ -65,7 +65,7 @@ CXXFLAGS_WX        = @WX_CXXFLAGS@
 CPPFLAGS_WX        = @WX_CPPFLAGS@
 LIBS_WX            = @WX_LIBS@ -lz
 
-CPPFLAGS_BOOST     = @BOOST_CPPFLAGS@
+CPPFLAGS_BOOST     = @BOOST_CPPFLAGS@ -DBOOST_SYSTEM_NO_DEPRECATED
 LIBS_BOOST         = @BOOST_LDFLAGS@ @BOOST_FILESYSTEM_LIB@ @BOOST_LOCALE_LIB@ @BOOST_REGEX_LIB@ @BOOST_SYSTEM_LIB@ @BOOST_THREAD_LIB@ @BOOST_CHRONO_LIB@
 
 CFLAGS_FFMS2       = @FFMS2_CFLAGS@