diff --git a/chain/actors/builtin/miner/miner.go b/chain/actors/builtin/miner/miner.go
index 76503d80e..154648986 100644
--- a/chain/actors/builtin/miner/miner.go
+++ b/chain/actors/builtin/miner/miner.go
@@ -35,6 +35,7 @@ type State interface {
 	LoadDeadline(idx uint64) (Deadline, error)
 	ForEachDeadline(cb func(idx uint64, dl Deadline) error) error
 	NumDeadlines() (uint64, error)
+	Info() (MinerInfo, error)
 }
 
 type Deadline interface {