diff --git a/src/backend/commands/copyto.c b/src/backend/commands/copyto.c
index 84dc465cbae..a3e7cc12ba2 100644
--- a/src/backend/commands/copyto.c
+++ b/src/backend/commands/copyto.c
@@ -409,6 +409,11 @@ BeginCopyTo(ParseState *pstate,
 							RelationGetRelationName(rel))));
 	}
 
+	/* Temporary and unlogged relations are inaccessible during recovery. */
+	if (rel != NULL && !RelationIsPermanent(rel) && RecoveryInProgress())
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot access temporary or unlogged relations during recovery")));
 
 	/* Allocate workspace and zero all fields */
 	cstate = (CopyToStateData *) palloc0(sizeof(CopyToStateData));
diff --git a/src/test/recovery/t/001_stream_rep.pl b/src/test/recovery/t/001_stream_rep.pl
index f3ea45ac4a2..c511918bba7 100644
--- a/src/test/recovery/t/001_stream_rep.pl
+++ b/src/test/recovery/t/001_stream_rep.pl
@@ -105,6 +105,19 @@ is( $node_standby_1->safe_psql(
 	't',
 	'pg_sequence_last_value() on unlogged sequence on standby 1');
 
+# Check that COPY TO rejects unlogged tables on standby
+$node_primary->safe_psql(
+	'postgres', q{
+CREATE UNLOGGED TABLE ultab (a int);
+});
+$node_primary->wait_for_replay_catchup($node_standby_1);
+my ($copy_ret, $copy_stdout, $copy_stderr) =
+  $node_standby_1->psql('postgres', 'COPY ultab TO STDOUT');
+like(
+	$copy_stderr,
+	qr/cannot access temporary or unlogged relations during recovery/,
+	'COPY TO of unlogged table on standby 1');
+
 # Check that only READ-only queries can run on standbys
 is($node_standby_1->psql('postgres', 'INSERT INTO tab_int VALUES (1)'),
 	3, 'read-only queries on standby 1');