diff --git a/libnm-glib/nm-remote-connection.c b/libnm-glib/nm-remote-connection.c
index d147365b79..a9702236d0 100644
--- a/libnm-glib/nm-remote-connection.c
+++ b/libnm-glib/nm-remote-connection.c
@@ -477,7 +477,7 @@ updated_get_settings_cb (DBusGProxy *proxy,
 		priv->visible = FALSE;
 		g_signal_emit (self, signals[VISIBLE], 0, FALSE);
 	} else {
-		gs_unref_object NMConnection *self_alive = NULL;
+		gs_unref_object NMRemoteConnection *self_alive = NULL;
 
 		self_alive = g_object_ref (self);
 		_nm_connection_replace_settings (NM_CONNECTION (self), new_settings);
@@ -601,9 +601,10 @@ constructed (GObject *object)
 static gboolean
 init_sync (GInitable *initable, GCancellable *cancellable, GError **error)
 {
-	NMRemoteConnectionPrivate *priv = NM_REMOTE_CONNECTION_GET_PRIVATE (initable);
+	NMRemoteConnection *self = NM_REMOTE_CONNECTION (initable);
+	NMRemoteConnectionPrivate *priv = NM_REMOTE_CONNECTION_GET_PRIVATE (self);
 	GHashTable *hash;
-	gs_unref_object NMConnection *self_alive = NULL;
+	gs_unref_object NMRemoteConnection *self_alive = NULL;
 
 	if (!dbus_g_proxy_call (priv->proxy, "GetSettings", error,
 	                        G_TYPE_INVALID,
@@ -611,9 +612,9 @@ init_sync (GInitable *initable, GCancellable *cancellable, GError **error)
 	                        G_TYPE_INVALID))
 		return FALSE;
 	priv->visible = TRUE;
-	self_alive = g_object_ref (initable);
-	_nm_connection_replace_settings (NM_CONNECTION (initable), hash);
-	g_signal_emit (initable, signals[UPDATED], 0, hash);
+	self_alive = g_object_ref (self);
+	_nm_connection_replace_settings (NM_CONNECTION (self), hash);
+	g_signal_emit (self, signals[UPDATED], 0, hash);
 	g_hash_table_destroy (hash);
 
 	/* Get properties */
@@ -676,7 +677,7 @@ init_get_settings_cb (DBusGProxy *proxy,
 	NMRemoteConnectionPrivate *priv = NM_REMOTE_CONNECTION_GET_PRIVATE (init_data->connection);
 	GHashTable *settings;
 	GError *error = NULL;
-	gs_unref_object NMConnection *self_alive = NULL;
+	gs_unref_object NMRemoteConnection *self_alive = NULL;
 
 	dbus_g_proxy_end_call (proxy, call, &error,
 	                       DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT, &settings,
diff --git a/shared/nm-utils/nm-glib.h b/shared/nm-utils/nm-glib.h
index 4ef538e441..599890e071 100644
--- a/shared/nm-utils/nm-glib.h
+++ b/shared/nm-utils/nm-glib.h
@@ -481,4 +481,9 @@ _nm_g_variant_new_printf (const char *format_string, ...)
 	})
 #endif
 
+#if !GLIB_CHECK_VERSION (2, 56, 0)
+#define g_object_ref(Obj)      ((typeof(Obj)) g_object_ref (Obj))
+#define g_object_ref_sink(Obj) ((typeof(Obj)) g_object_ref_sink (Obj))
+#endif
+
 #endif  /* __NM_GLIB_H__ */
diff --git a/shared/nm-utils/nm-macros-internal.h b/shared/nm-utils/nm-macros-internal.h
index 8005375c9d..9d9016e428 100644
--- a/shared/nm-utils/nm-macros-internal.h
+++ b/shared/nm-utils/nm-macros-internal.h
@@ -721,6 +721,7 @@ nm_g_object_ref (gpointer obj)
 		g_object_ref (obj);
 	return obj;
 }
+#define nm_g_object_ref(obj) ((typeof (obj)) nm_g_object_ref (obj))
 
 static inline void
 nm_g_object_unref (gpointer obj)
diff --git a/src/settings/plugins/ibft/nms-ibft-plugin.c b/src/settings/plugins/ibft/nms-ibft-plugin.c
index 9b1f5ccd00..ea4d15241a 100644
--- a/src/settings/plugins/ibft/nms-ibft-plugin.c
+++ b/src/settings/plugins/ibft/nms-ibft-plugin.c
@@ -202,5 +202,5 @@ settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface)
 G_MODULE_EXPORT GObject *
 nm_settings_plugin_factory (void)
 {
-	return g_object_ref (nms_ibft_plugin_get ());
+	return G_OBJECT (g_object_ref (nms_ibft_plugin_get ()));
 }
diff --git a/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-plugin.c b/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-plugin.c
index 8ad3a53f3d..ccd3708d51 100644
--- a/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-plugin.c
+++ b/src/settings/plugins/ifcfg-rh/nms-ifcfg-rh-plugin.c
@@ -1080,5 +1080,5 @@ settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface)
 G_MODULE_EXPORT GObject *
 nm_settings_plugin_factory (void)
 {
-	return g_object_ref (settings_plugin_ifcfg_get ());
+	return G_OBJECT (g_object_ref (settings_plugin_ifcfg_get ()));
 }
diff --git a/src/settings/plugins/ifnet/nms-ifnet-plugin.c b/src/settings/plugins/ifnet/nms-ifnet-plugin.c
index 98e56e449a..38d23f306b 100644
--- a/src/settings/plugins/ifnet/nms-ifnet-plugin.c
+++ b/src/settings/plugins/ifnet/nms-ifnet-plugin.c
@@ -520,5 +520,5 @@ settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface)
 G_MODULE_EXPORT GObject *
 nm_settings_plugin_factory (void)
 {
-	return g_object_ref (settings_plugin_ifnet_get ());
+	return G_OBJECT (g_object_ref (settings_plugin_ifnet_get ()));
 }
diff --git a/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c b/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c
index 87afb6c8e9..bfad9d1592 100644
--- a/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c
+++ b/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c
@@ -541,6 +541,6 @@ settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface)
 G_MODULE_EXPORT GObject *
 nm_settings_plugin_factory (void)
 {
-	return g_object_ref (settings_plugin_ifupdown_get ());
+	return G_OBJECT (g_object_ref (settings_plugin_ifupdown_get ()));
 }