diff --git a/README.md b/README.md
index 9e6c072f..d627362d 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,8 @@ The following options are available:
      --max-peers            The maximum number of peers to connect to [=160].
      --agent-string         Node agent string which is used as identifier in network [=Codex].
  -p, --api-port             The REST Api port [=8080].
+ -q, --storage-quota        The size of the total storage quota dedicated to the node [=8589934592].
+ -t, --block-ttl            Default block timeout in seconds - 0 disables the ttl [=86400].
  -c, --cache-size           The size in MiB of the block cache, 0 disables the cache - might help on slow
                             hardrives [=0].
      --persistence          Enables persistence mechanism, requires an Ethereum node [=false].
diff --git a/codex/conf.nim b/codex/conf.nim
index 7a7b8eab..6999edfc 100644
--- a/codex/conf.nim
+++ b/codex/conf.nim
@@ -17,6 +17,7 @@ import std/options
 import std/strutils
 import std/typetraits
 
+import pkg/chronos
 import pkg/chronicles
 import pkg/chronicles/helpers
 import pkg/chronicles/topics_registry
@@ -31,7 +32,7 @@ import pkg/ethers
 import ./discovery
 import ./stores
 
-export DefaultCacheSizeMiB, net, DefaultQuotaBytes, DefaultBlockTtl
+export DefaultCacheSizeMiB, DefaultQuotaBytes, DefaultBlockTtl, net
 
 type
   StartUpCommand* {.pure.} = enum
@@ -154,7 +155,7 @@ type
       blockTtl* {.
         desc: "Default block timeout in seconds - 0 disables the ttl"
         defaultValue: DefaultBlockTtl.secs
-        defaultValueDesc: $DefaultBlockTtl
+        defaultValueDesc: "86400" # 24h in secs
         name: "block-ttl"
         abbr: "t" }: Natural
 
diff --git a/codex/stores/blockstore.nim b/codex/stores/blockstore.nim
index 3e06ef9f..363e303a 100644
--- a/codex/stores/blockstore.nim
+++ b/codex/stores/blockstore.nim
@@ -20,9 +20,6 @@ import ../blocktype
 
 export blocktype, libp2p
 
-const
-  DefaultBlockTtl = 24.hours
-
 type
   BlockNotFoundError* = object of CodexError