diff --git a/src/initrd/nmi-cmdline-reader.c b/src/initrd/nmi-cmdline-reader.c
index b2969d90d4..c12dc6dded 100644
--- a/src/initrd/nmi-cmdline-reader.c
+++ b/src/initrd/nmi-cmdline-reader.c
@@ -694,6 +694,9 @@ reader_parse_master (Reader *reader,
 		mtu = get_word (&argument, ':');
 	}
 
+	if (mtu)
+		connection_set (connection, NM_SETTING_WIRED_SETTING_NAME, NM_SETTING_WIRED_MTU, mtu);
+
 	do {
 		slave = get_word (&slaves, ',');
 		if (slave == NULL)
@@ -705,8 +708,6 @@ reader_parse_master (Reader *reader,
 		              NM_SETTING_CONNECTION_SLAVE_TYPE, type_name,
 		              NM_SETTING_CONNECTION_MASTER, master,
 		              NULL);
-		if (mtu)
-			connection_set (connection, NM_SETTING_WIRED_SETTING_NAME, NM_SETTING_WIRED_MTU, mtu);
 	} while (slaves && *slaves != '\0');
 
 	if (argument && *argument)
diff --git a/src/initrd/tests/test-cmdline-reader.c b/src/initrd/tests/test-cmdline-reader.c
index 0ffb0906f1..6860cda4ab 100644
--- a/src/initrd/tests/test-cmdline-reader.c
+++ b/src/initrd/tests/test-cmdline-reader.c
@@ -704,13 +704,14 @@ test_bond (void)
 {
 	gs_unref_hashtable GHashTable *connections = NULL;
 	const char *const*ARGV = NM_MAKE_STRV ("rd.route=192.0.2.53::bong0",
-	                                       "bond=bong0:eth0,eth1:mode=balance-rr",
+	                                       "bond=bong0:eth0,eth1:mode=balance-rr:9000",
 	                                       "nameserver=203.0.113.53");
 	NMConnection *connection;
 	NMSettingConnection *s_con;
 	NMSettingIPConfig *s_ip4;
 	NMSettingIPConfig *s_ip6;
 	NMSettingBond *s_bond;
+	NMSettingWired *s_wired;
 	NMIPRoute *ip_route;
 	const char *master_uuid;
 	gs_free char *hostname = NULL;
@@ -728,6 +729,10 @@ test_bond (void)
 	master_uuid = nm_connection_get_uuid (connection);
 	g_assert (master_uuid);
 
+	s_wired = nm_connection_get_setting_wired (connection);
+	g_assert (s_wired);
+	g_assert_cmpint (nm_setting_wired_get_mtu (s_wired), ==, 9000);
+
 	s_ip4 = nm_connection_get_setting_ip4_config (connection);
 	g_assert (s_ip4);
 	g_assert_cmpstr (nm_setting_ip_config_get_method (s_ip4), ==, NM_SETTING_IP4_CONFIG_METHOD_AUTO);