diff --git a/src/conf/checkpoint_conf.h b/src/conf/checkpoint_conf.h
index 2be041ff56..982096abed 100644
--- a/src/conf/checkpoint_conf.h
+++ b/src/conf/checkpoint_conf.h
@@ -57,6 +57,7 @@ struct _virDomainCheckpointDef {
     virDomainCheckpointDiskDef *disks;
 };
 
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainCheckpointDef, virObjectUnref);
 
 typedef enum {
     VIR_DOMAIN_CHECKPOINT_PARSE_REDEFINE = 1 << 0,