diff --git a/src/backend/commands/sequence.c b/src/backend/commands/sequence.c
index 0f9dcfe..d696203 100644
*** a/src/backend/commands/sequence.c
--- b/src/backend/commands/sequence.c
*************** do_setval(Oid relid, int64 next, bool is
*** 738,743 ****
--- 738,746 ----
  	Buffer		buf;
  	Form_pg_sequence seq;
  
+ 	/* setval() writes to database and must be prevented during recovery */
+ 	PreventCommandDuringRecovery();
+ 
  	/* open and AccessShareLock sequence */
  	init_sequence(relid, &elm, &seqrel);