diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 6ac5184b37..9c93df0f0a 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -2469,7 +2469,7 @@ static struct config_int ConfigureNamesInt[] =
 			NULL,
 		},
 		&max_worker_processes,
-		8, 1, MAX_BACKENDS,
+		8, 0, MAX_BACKENDS,
 		check_max_worker_processes, NULL, NULL
 	},