diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index c3ebb3a9b0..abebdacfdc 100644
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -1011,7 +1011,15 @@ setup_connection(Archive *AH, DumpOptions *dopt, const char *dumpencoding,
 	ExecuteSqlStatement(AH, "BEGIN");
 	if (AH->remoteVersion >= 90100)
 	{
-		if (dopt->serializable_deferrable)
+		/*
+		 * To support the combination of serializable_deferrable with the jobs
+		 * option we use REPEATABLE READ for the worker connections that are
+		 * passed a snapshot.  As long as the snapshot is acquired in a
+		 * SERIALIZABLE, READ ONLY, DEFERRABLE transaction, its use within a
+		 * REPEATABLE READ transaction provides the appropriate integrity
+		 * guarantees.  This is a kluge, but safe for back-patching.
+		 */
+		if (dopt->serializable_deferrable && AH->sync_snapshot_id == NULL)
 			ExecuteSqlStatement(AH,
 								"SET TRANSACTION ISOLATION LEVEL "
 								"SERIALIZABLE, READ ONLY, DEFERRABLE");