diff --git a/util/mk1mf.pl b/util/mk1mf.pl
index e83ef7d37..08e0d3c85 100755
--- a/util/mk1mf.pl
+++ b/util/mk1mf.pl
@@ -1465,6 +1465,7 @@ sub read_options
 		"no-zlib-dynamic" => 0,
 		"no-ssl-trace" => 0,
 		"no-unit-test" => 0,
+		"no-deprecated" => 0,
 		"fips" => \$fips,
 		"fipscanisterbuild" => [\$fips, \$fipscanisterbuild],
 		"fipscanisteronly" => [\$fips, \$fipscanisterbuild, \$fipscanisteronly],
diff --git a/util/mkdef.pl b/util/mkdef.pl
index ccd72f588..009d13224 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -246,6 +246,7 @@ foreach (@ARGV, split(/ /, $options))
 	elsif (/^no-sctp$/)	{ $no_sctp=1; }
 	elsif (/^no-srtp$/)	{ $no_srtp=1; }
 	elsif (/^no-unit-test$/){ $no_unit_test=1; }
+	elsif (/^no-deprecated$/) { $no_deprecated=1; }
 	}