diff --git a/src/network/networkd-ipv6-proxy-ndp.c b/src/network/networkd-ipv6-proxy-ndp.c
index 0b57c6c4db..7a370e9318 100644
--- a/src/network/networkd-ipv6-proxy-ndp.c
+++ b/src/network/networkd-ipv6-proxy-ndp.c
@@ -38,7 +38,7 @@ static int ipv6_proxy_ndp_address_configure(Link *link, const struct in6_addr *a
         if (r < 0)
                 return log_link_error_errno(link, r, "Could not create RTM_NEWNEIGH message: %m");
 
-        r = sd_rtnl_message_neigh_set_flags(req, NLM_F_REQUEST | NTF_PROXY);
+        r = sd_rtnl_message_neigh_set_flags(req, NTF_PROXY);
         if (r < 0)
                 return log_link_error_errno(link, r, "Could not set neighbor flags: %m");