diff --git a/libnm/nm-dhcp6-config.c b/libnm/nm-dhcp6-config.c
index 0bd924c402..3b2e81f84c 100644
--- a/libnm/nm-dhcp6-config.c
+++ b/libnm/nm-dhcp6-config.c
@@ -23,7 +23,7 @@
 #include "nm-dhcp6-config.h"
 #include "nm-object-private.h"
 
-G_DEFINE_TYPE (NMDhcp6Config, nm_dhcp6_config, NM_TYPE_OBJECT)
+G_DEFINE_TYPE (NMDhcp6Config, nm_dhcp6_config, NM_TYPE_DHCP_CONFIG)
 
 static void
 nm_dhcp6_config_init (NMDhcp6Config *config)