diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 0ceb89fd50..f340214f1d 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -1239,7 +1239,7 @@ static struct config_int ConfigureNamesInt[] =
 			GUC_UNIT_S
 		},
 		&XLogArchiveTimeout,
-		0, 0, INT_MAX, NULL, NULL
+		0, 0, INT_MAX / 2, NULL, NULL
 	},
 	{
 		{"post_auth_delay", PGC_BACKEND, DEVELOPER_OPTIONS,
@@ -1248,7 +1248,7 @@ static struct config_int ConfigureNamesInt[] =
 			GUC_NOT_IN_SAMPLE | GUC_UNIT_S
 		},
 		&PostAuthDelay,
-		0, 0, INT_MAX, NULL, NULL
+		0, 0, INT_MAX / 1000000, NULL, NULL
 	},
 	{
 		{"default_statistics_target", PGC_USERSET, QUERY_TUNING_OTHER,