diff --git a/src/devices/nm-device-tun.c b/src/devices/nm-device-tun.c
index 81442274a0..9a3fab5ec8 100644
--- a/src/devices/nm-device-tun.c
+++ b/src/devices/nm-device-tun.c
@@ -156,10 +156,10 @@ get_property (GObject *object, guint prop_id,
 
 	switch (prop_id) {
 	case PROP_OWNER:
-		g_value_set_uint (value, priv->props.owner);
+		g_value_set_int64 (value, priv->props.owner);
 		break;
 	case PROP_GROUP:
-		g_value_set_uint (value, priv->props.group);
+		g_value_set_int64 (value, priv->props.group);
 		break;
 	case PROP_MODE:
 		g_value_set_string (value, priv->mode);