diff --git a/src/backend/replication/logical/slotsync.c b/src/backend/replication/logical/slotsync.c
index 93f41be32af..96107c9475d 100644
--- a/src/backend/replication/logical/slotsync.c
+++ b/src/backend/replication/logical/slotsync.c
@@ -340,7 +340,7 @@ update_local_synced_slot(RemoteSlot *remote_slot, Oid remote_dbid)
 			bool		found_consistent_snapshot;
 			XLogRecPtr	old_confirmed_lsn = slot->data.confirmed_flush;
 			XLogRecPtr	old_restart_lsn = slot->data.restart_lsn;
-			XLogRecPtr	old_catalog_xmin = slot->data.catalog_xmin;
+			TransactionId old_catalog_xmin = slot->data.catalog_xmin;
 
 			LogicalSlotAdvanceAndCheckSnapState(remote_slot->confirmed_lsn,
 												&found_consistent_snapshot);