diff --git a/lotus-soup/manifest.toml b/lotus-soup/manifest.toml
index a5b12469a..0f41dda4d 100644
--- a/lotus-soup/manifest.toml
+++ b/lotus-soup/manifest.toml
@@ -53,6 +53,8 @@ instances = { min = 1, max = 100, default = 5 }
   balance = { type = "int", default = 1 }
   sectors = { type = "int", default = 1 }
   role = { type = "string" }
+  genesis_timestamp_offset = { type = "int", default = 0 }
+
 
   random_beacon_type = { type = "enum", default = "local-drand", options = ["mock", "local-drand", "external-drand"] }