diff --git a/README.md b/README.md
index 979f8201..37046b16 100644
--- a/README.md
+++ b/README.md
@@ -258,7 +258,7 @@ not be seen in properly implemented actor code. To induce those situations,
 those vectors rely on a special test harness actor that sits "on the inside"
 and triggers those situations when specific messages are sent to it.
 
-The **Chaos Actor (address `t97`)** exercises behaviours that should be
+The **Chaos Actor (address `t98`)** exercises behaviours that should be
 regarded as illegal by the VM. Its ABI spec is part of this testing spec, and
 it's currently being heavily developed.
 
diff --git a/chaos/actor.go b/chaos/actor.go
index 06bc089d..b9070cf9 100644
--- a/chaos/actor.go
+++ b/chaos/actor.go
@@ -19,7 +19,7 @@ import (
 // properly enforced.
 //
 // The chaos actor is being incubated and its behaviour and ABI be standardised
-// shortly. Its CID is ChaosActorCodeCID, and its singleton address is 97 (Address).
+// shortly. Its CID is ChaosActorCodeCID, and its singleton address is 98 (Address).
 // It cannot be instantiated via the init actor, and its constructor panics.
 //
 // Test vectors relying on the chaos actor being deployed will carry selector
diff --git a/chaos/ids.go b/chaos/ids.go
index ccebbcfe..6b0ad86a 100644
--- a/chaos/ids.go
+++ b/chaos/ids.go
@@ -16,12 +16,12 @@ var ChaosActorCodeCID = func() cid.Cid {
 	return c
 }()
 
-// Address is the singleton address of this actor. It is value 97
-// (builtin.FirstNonSingletonActorId - 3), as 99 is reserved for the burnt funds
-// singleton, and 98 is the puppet actor.
+// Address is the singleton address of this actor. Its value is 98
+// (builtin.FirstNonSingletonActorId - 2), as 99 is reserved for the burnt funds
+// singleton.
 var Address = func() address.Address {
-	// the address before the burnt funds address (99) and the puppet actor (98)
-	addr, err := address.NewIDAddress(97)
+	// the address before the burnt funds address (99)
+	addr, err := address.NewIDAddress(98)
 	if err != nil {
 		panic(err)
 	}