diff --git a/src/nm-route-manager.c b/src/nm-route-manager.c
index 77cc761456..8c4c6a14f7 100644
--- a/src/nm-route-manager.c
+++ b/src/nm-route-manager.c
@@ -515,7 +515,7 @@ _vx_route_sync (const VTableIP *vtable, NMRouteManager *self, int ifindex, const
 					 * device routes, on the second the others (gateway routes). */
 					continue;
 				}
-				vtable->vt->route_add (NM_PLATFORM_GET, 0, rest_route, 0);
+				vtable->vt->route_add (NM_PLATFORM_GET, 0, rest_route);
 			}
 		}
 		g_array_unref (to_restore_routes);
@@ -559,7 +559,7 @@ _vx_route_sync (const VTableIP *vtable, NMRouteManager *self, int ifindex, const
 			    || route_id_cmp_result != 0
 			    || !_route_equals_ignoring_ifindex (vtable, cur_plat_route, cur_ipx_route)) {
 
-				if (!vtable->vt->route_add (NM_PLATFORM_GET, ifindex, cur_ipx_route, 0)) {
+				if (!vtable->vt->route_add (NM_PLATFORM_GET, ifindex, cur_ipx_route)) {
 					if (cur_ipx_route->rx.source < NM_IP_CONFIG_SOURCE_USER) {
 						_LOGD (vtable->vt->addr_family,
 						       "ignore error adding IPv%c route to kernel: %s",
diff --git a/src/platform/nm-linux-platform.c b/src/platform/nm-linux-platform.c
index 1299dea7a5..0582c0d714 100644
--- a/src/platform/nm-linux-platform.c
+++ b/src/platform/nm-linux-platform.c
@@ -1289,6 +1289,7 @@ _nmp_vt_cmd_plobj_init_from_nl_ip4_route (NMPlatform *platform, NMPlatformObject
 	struct rtnl_route *nlo = (struct rtnl_route *) _nlo;
 	struct nl_addr *dst, *gw;
 	struct rtnl_nexthop *nexthop;
+	struct nl_addr *pref_src;
 
 	if (rtnl_route_get_type (nlo) != RTN_UNICAST ||
 	    rtnl_route_get_table (nlo) != RT_TABLE_MAIN ||
@@ -1334,6 +1335,14 @@ _nmp_vt_cmd_plobj_init_from_nl_ip4_route (NMPlatform *platform, NMPlatformObject
 	} else
 		obj->source = _nm_ip_config_source_from_rtprot (rtnl_route_get_protocol (nlo));
 
+	pref_src = rtnl_route_get_pref_src (nlo);
+	if (pref_src) {
+		if (nl_addr_get_len (pref_src) != sizeof (obj->pref_src))
+			g_warn_if_reached ();
+		else
+			memcpy (&obj->pref_src, nl_addr_get_binary_addr (pref_src), sizeof (obj->pref_src));
+	}
+
 	return TRUE;
 }
 
@@ -4346,7 +4355,7 @@ _nmp_vt_cmd_plobj_to_nl_ip4_route (NMPlatform *platform, const NMPlatformObject
 	                         &obj->network,
 	                         obj->plen,
 	                         &obj->gateway,
-	                         NULL,
+	                         obj->pref_src ? &obj->pref_src : NULL,
 	                         obj->metric,
 	                         obj->mss);
 }
diff --git a/src/platform/nm-platform.c b/src/platform/nm-platform.c
index 52e5e51aa4..8439191d18 100644
--- a/src/platform/nm-platform.c
+++ b/src/platform/nm-platform.c
@@ -2177,7 +2177,6 @@ nm_platform_ip4_route_add (NMPlatform *self,
 
 	if (nm_logging_enabled (LOGL_DEBUG, LOGD_PLATFORM)) {
 		NMPlatformIP4Route route = { 0 };
-		char pref_src_buf[NM_UTILS_INET_ADDRSTRLEN];
 
 		route.ifindex = ifindex;
 		route.source = source;
@@ -2186,11 +2185,9 @@ nm_platform_ip4_route_add (NMPlatform *self,
 		route.gateway = gateway;
 		route.metric = metric;
 		route.mss = mss;
+		route.pref_src = pref_src;
 
-		debug ("route: adding or updating IPv4 route: %s%s%s%s", nm_platform_ip4_route_to_string (&route),
-		       pref_src ? " (src: " : "",
-		       pref_src ? nm_utils_inet4_ntop (pref_src, pref_src_buf) : "",
-		       pref_src ? ")" : "");
+		debug ("route: adding or updating IPv4 route: %s", nm_platform_ip4_route_to_string (&route));
 	}
 	return klass->ip4_route_add (self, ifindex, source, network, plen, gateway, pref_src, metric, mss);
 }
@@ -2595,6 +2592,7 @@ const char *
 nm_platform_ip4_route_to_string (const NMPlatformIP4Route *route)
 {
 	char s_network[INET_ADDRSTRLEN], s_gateway[INET_ADDRSTRLEN];
+	char s_pref_src[INET_ADDRSTRLEN];
 	char str_dev[TO_STRING_DEV_BUF_SIZE];
 	char str_scope[30];
 
@@ -2613,6 +2611,7 @@ nm_platform_ip4_route_to_string (const NMPlatformIP4Route *route)
 	            " mss %"G_GUINT32_FORMAT
 	            " src %s" /* source */
 	            "%s%s" /* scope */
+	            "%s%s" /* pref-src */
 	            "",
 	            s_network, route->plen,
 	            s_gateway,
@@ -2621,7 +2620,9 @@ nm_platform_ip4_route_to_string (const NMPlatformIP4Route *route)
 	            route->mss,
 	            source_to_string (route->source),
 	            route->scope_inv ? " scope " : "",
-	            route->scope_inv ? (rtnl_scope2str (nm_platform_route_scope_inv (route->scope_inv), str_scope, sizeof (str_scope))) : "");
+	            route->scope_inv ? (rtnl_scope2str (nm_platform_route_scope_inv (route->scope_inv), str_scope, sizeof (str_scope))) : "",
+	            route->pref_src ? " pref-src " : "",
+	            route->pref_src ? inet_ntop (AF_INET, &route->pref_src, s_pref_src, sizeof(s_pref_src)) : "");
 	return _nm_platform_to_string_buffer;
 }
 
@@ -2800,6 +2801,7 @@ nm_platform_ip4_route_cmp (const NMPlatformIP4Route *a, const NMPlatformIP4Route
 	_CMP_FIELD (a, b, metric);
 	_CMP_FIELD (a, b, mss);
 	_CMP_FIELD (a, b, scope_inv);
+	_CMP_FIELD (a, b, pref_src);
 	return 0;
 }
 
@@ -2922,7 +2924,7 @@ log_ip6_route (NMPlatform *p, NMPObjectType obj_type, int ifindex, NMPlatformIP6
 /******************************************************************/
 
 static gboolean
-_vtr_v4_route_add (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route, guint32 v4_pref_src)
+_vtr_v4_route_add (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route)
 {
 	return nm_platform_ip4_route_add (self,
 	                                  ifindex > 0 ? ifindex : route->rx.ifindex,
@@ -2930,13 +2932,13 @@ _vtr_v4_route_add (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *rout
 	                                  route->r4.network,
 	                                  route->rx.plen,
 	                                  route->r4.gateway,
-	                                  v4_pref_src,
+	                                  route->r4.pref_src,
 	                                  route->rx.metric,
 	                                  route->rx.mss);
 }
 
 static gboolean
-_vtr_v6_route_add (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route, guint32 v4_pref_src)
+_vtr_v6_route_add (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route)
 {
 	return nm_platform_ip6_route_add (self,
 	                                  ifindex > 0 ? ifindex : route->rx.ifindex,
diff --git a/src/platform/nm-platform.h b/src/platform/nm-platform.h
index 4ad30b7de1..89f218b363 100644
--- a/src/platform/nm-platform.h
+++ b/src/platform/nm-platform.h
@@ -276,6 +276,10 @@ struct _NMPlatformIP4Route {
 	/* The bitwise inverse of the route scope. It is inverted so that the
 	 * default value (RT_SCOPE_NOWHERE) is nul. */
 	guint8 scope_inv;
+
+	/* RTA_PREFSRC/rtnl_route_get_pref_src(). A value of zero means that
+	 * no pref-src is set.  */
+	guint32 pref_src;
 };
 G_STATIC_ASSERT (G_STRUCT_OFFSET (NMPlatformIPRoute, network_ptr) == G_STRUCT_OFFSET (NMPlatformIP4Route, network));
 
@@ -305,7 +309,7 @@ typedef struct {
 	int (*route_cmp) (const NMPlatformIPXRoute *a, const NMPlatformIPXRoute *b);
 	const char *(*route_to_string) (const NMPlatformIPXRoute *route);
 	GArray *(*route_get_all) (NMPlatform *self, int ifindex, NMPlatformGetRouteMode mode);
-	gboolean (*route_add) (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route, guint32 v4_pref_src);
+	gboolean (*route_add) (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route);
 	gboolean (*route_delete) (NMPlatform *self, int ifindex, const NMPlatformIPXRoute *route);
 	gboolean (*route_delete_default) (NMPlatform *self, int ifindex, guint32 metric);
 	guint32 (*metric_normalize) (guint32 metric);