diff --git a/util/mk1mf.pl b/util/mk1mf.pl
index ea5046546..916175ab3 100755
--- a/util/mk1mf.pl
+++ b/util/mk1mf.pl
@@ -1143,6 +1143,7 @@ sub read_options
 		"shlib" => \$shlib,
 		"dll" => \$shlib,
 		"shared" => 0,
+		"no-sctp" => 0,
 		"no-gmp" => 0,
 		"no-rfc3779" => 0,
 		"no-montasm" => 0,