diff --git a/minissdpd/getifaddr.c b/minissdpd/getifaddr.c
index a960745..00f1aa5 100644
--- a/minissdpd/getifaddr.c
+++ b/minissdpd/getifaddr.c
@@ -1,4 +1,4 @@
-/* $Id: getifaddr.c,v 1.26 2019/05/20 19:54:08 nanard Exp $ */
+/* $Id: getifaddr.c,v 1.27 2020/09/28 21:32:33 nanard Exp $ */
 /* vim: tabstop=4 shiftwidth=4 noexpandtab
  * MiniUPnP project
  * http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
@@ -279,7 +279,7 @@ static const struct { uint32_t address; uint32_t rmask; } reserved[] = {
 	{ IP(192,  52, 193, 0), MSK(24) }, /* RFC7450 AMT */
 	{ IP(192,  88,  99, 0), MSK(24) }, /* RFC7526 6to4 Relay Anycast */
 	{ IP(192, 168,   0, 0), MSK(16) }, /* RFC1918 Private-Use */
-	{ IP(192, 175,  48, 0), MSK(16) }, /* RFC7534 Direct Delegation AS112 Service */
+	{ IP(192, 175,  48, 0), MSK(24) }, /* RFC7534 Direct Delegation AS112 Service */
 	{ IP(198,  18,   0, 0), MSK(15) }, /* RFC2544 Benchmarking */
 	{ IP(198,  51, 100, 0), MSK(24) }, /* RFC5737 Documentation (TEST-NET-2) */
 	{ IP(203,   0, 113, 0), MSK(24) }, /* RFC5737 Documentation (TEST-NET-3) */