diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index ab9eeb13a5d..5faefc6fc6e 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -608,7 +608,7 @@ static int ndisc_router_process_route(Link *link, sd_ndisc_router *rt) {
         }
 
         r = sd_ndisc_router_route_get_preference(rt, &preference);
-        if (r == -ENOTSUP) {
+        if (r == -EOPNOTSUPP) {
                 log_link_debug_errno(link, r, "Received route prefix with unsupported preference, ignoring: %m");
                 return 0;
         }