diff --git a/src/core/NetworkManagerUtils.c b/src/core/NetworkManagerUtils.c
index 8b0b484583..f5b7666b0e 100644
--- a/src/core/NetworkManagerUtils.c
+++ b/src/core/NetworkManagerUtils.c
@@ -978,6 +978,7 @@ nm_ip_routing_rule_to_platform(const NMIPRoutingRule *rule, NMPlatformRoutingRul
                 .start = uid_range_start,
                 .end   = uid_range_end,
             },
+        .protocol = RTPROT_STATIC,
     };
 
     nm_ip_routing_rule_get_xifname_bin(rule, TRUE, out_pl->iifname);