diff --git a/documentation/en/default-lotus-config.toml b/documentation/en/default-lotus-config.toml
index 4e6cba4a3..25cd350c8 100644
--- a/documentation/en/default-lotus-config.toml
+++ b/documentation/en/default-lotus-config.toml
@@ -242,7 +242,7 @@
     #
     # type: uint64
     # env var: LOTUS_CHAINSTORE_SPLITSTORE_HOTSTOREMAXSPACETARGET
-    #HotStoreMaxSpaceTarget = 0
+    #HotStoreMaxSpaceTarget = 650000000000
 
     # When HotStoreMaxSpaceTarget is set Moving GC will be triggered when total moving size
     # exceeds HotstoreMaxSpaceTarget - HotstoreMaxSpaceThreshold
diff --git a/node/config/def.go b/node/config/def.go
index 2617ec5ba..4020e4ca6 100644
--- a/node/config/def.go
+++ b/node/config/def.go
@@ -96,6 +96,7 @@ func DefaultFullNode() *FullNode {
 				MarkSetType:   "badger",
 
 				HotStoreFullGCFrequency:      20,
+				HotStoreMaxSpaceTarget:       650_000_000_000,
 				HotStoreMaxSpaceThreshold:    150_000_000_000,
 				HotstoreMaxSpaceSafetyBuffer: 50_000_000_000,
 			},