diff --git a/libckteec/src/serialize_ck.c b/libckteec/src/serialize_ck.c
index ffcffd63..825677e2 100644
--- a/libckteec/src/serialize_ck.c
+++ b/libckteec/src/serialize_ck.c
@@ -107,6 +107,8 @@ static CK_RV serialize_indirect_attribute(struct serializer *obj,
 
 	obj->item_count++;
 
+	release_serial_object(&obj2);
+
 	return rv;
 }