--- a/src/backend/slony1_funcs.sql
+++ b/src/backend/slony1_funcs.sql
@@ -1479,7 +1479,7 @@
 -- preparation for the node to be copied with standard DB tools.
 -- ----------------------------------------------------------------------
 create or replace function @NAMESPACE@.cloneNodePrepare (int4, int4, text)
-returns int4
+returns bigint
 as $$
 declare
    p_no_id         alias for $1;