diff --git a/src/backend/utils/adt/pg_upgrade_support.c b/src/backend/utils/adt/pg_upgrade_support.c
index 2f6fc86c3d..7c6d25edf4 100644
--- a/src/backend/utils/adt/pg_upgrade_support.c
+++ b/src/backend/utils/adt/pg_upgrade_support.c
@@ -281,11 +281,7 @@ binary_upgrade_logical_slot_has_caught_up(PG_FUNCTION_ARGS)
 
 	CHECK_IS_BINARY_UPGRADE;
 
-	/* We must check before dereferencing the argument */
-	if (PG_ARGISNULL(0))
-		elog(ERROR, "null argument to binary_upgrade_validate_wal_records is not allowed");
-
-	CheckSlotPermissions();
+	Assert(has_rolreplication(GetUserId()));
 
 	slot_name = PG_GETARG_NAME(0);
 
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index fb58dee3bc..77e8b13764 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -11392,9 +11392,8 @@
   proparallel => 'u', prorettype => 'void', proargtypes => 'oid',
   prosrc => 'binary_upgrade_set_next_pg_tablespace_oid' },
 { oid => '8046', descr => 'for use by pg_upgrade',
-  proname => 'binary_upgrade_logical_slot_has_caught_up', proisstrict => 'f',
-  provolatile => 'v', proparallel => 'u', prorettype => 'bool',
-  proargtypes => 'name',
+  proname => 'binary_upgrade_logical_slot_has_caught_up', provolatile => 'v',
+  proparallel => 'u', prorettype => 'bool', proargtypes => 'name',
   prosrc => 'binary_upgrade_logical_slot_has_caught_up' },
 
 # conversion functions