diff --git a/src/dns-manager/nm-dns-manager.c b/src/dns-manager/nm-dns-manager.c
index 7285b89d99..b42af167cd 100644
--- a/src/dns-manager/nm-dns-manager.c
+++ b/src/dns-manager/nm-dns-manager.c
@@ -1142,17 +1142,9 @@ nm_dns_manager_add_ip4_config (NMDnsManager *self,
 
 	switch (cfg_type) {
 	case NM_DNS_IP_CONFIG_TYPE_VPN:
-		if (priv->ip4_vpn_config && priv->ip4_vpn_config != config) {
-			priv->configs = g_slist_remove (priv->configs, priv->ip4_vpn_config);
-			g_object_unref (priv->ip4_vpn_config);
-		}
 		priv->ip4_vpn_config = config;
 		break;
 	case NM_DNS_IP_CONFIG_TYPE_BEST_DEVICE:
-		if (priv->ip4_device_config && priv->ip4_device_config != config) {
-			priv->configs = g_slist_remove (priv->configs, priv->ip4_device_config);
-			g_object_unref (priv->ip4_device_config);
-		}
 		priv->ip4_device_config = config;
 		break;
 	default:
@@ -1223,17 +1215,9 @@ nm_dns_manager_add_ip6_config (NMDnsManager *self,
 
 	switch (cfg_type) {
 	case NM_DNS_IP_CONFIG_TYPE_VPN:
-		if (priv->ip6_vpn_config && priv->ip6_vpn_config != config) {
-			priv->configs = g_slist_remove (priv->configs, priv->ip6_vpn_config);
-			g_object_unref (priv->ip6_vpn_config);
-		}
 		priv->ip6_vpn_config = config;
 		break;
 	case NM_DNS_IP_CONFIG_TYPE_BEST_DEVICE:
-		if (priv->ip6_device_config && priv->ip6_device_config != config) {
-			priv->configs = g_slist_remove (priv->configs, priv->ip6_device_config);
-			g_object_unref (priv->ip6_device_config);
-		}
 		priv->ip6_device_config = config;
 		break;
 	default: