diff --git a/chain/stmgr/call.go b/chain/stmgr/call.go
index 291f1c3a77..b21fb75f22 100644
--- a/chain/stmgr/call.go
+++ b/chain/stmgr/call.go
@@ -95,7 +95,7 @@ func (sm *StateManager) Call(ctx context.Context, msg *types.Message, ts *types.
 
 	state := ts.ParentState()
 
-	r := store.NewChainRand(sm.cs, ts.Cids(), ts.Height())
+	r := store.NewChainRand(sm.cs, ts.Cids())
 
 	return sm.CallRaw(ctx, msg, state, r, ts.Height())
 }
@@ -113,7 +113,7 @@ func (sm *StateManager) CallWithGas(ctx context.Context, msg *types.Message, pri
 		return nil, xerrors.Errorf("computing tipset state: %w", err)
 	}
 
-	r := store.NewChainRand(sm.cs, ts.Cids(), ts.Height())
+	r := store.NewChainRand(sm.cs, ts.Cids())
 
 	if span.IsRecordingEvents() {
 		span.AddAttributes(
diff --git a/chain/stmgr/stmgr.go b/chain/stmgr/stmgr.go
index 55b562231a..e041fe0889 100644
--- a/chain/stmgr/stmgr.go
+++ b/chain/stmgr/stmgr.go
@@ -338,7 +338,7 @@ func (sm *StateManager) computeTipSetState(ctx context.Context, ts *types.TipSet
 		cids[i] = v.Cid()
 	}
 
-	r := store.NewChainRand(sm.cs, cids, blks[0].Height)
+	r := store.NewChainRand(sm.cs, cids)
 
 	blkmsgs, err := sm.cs.BlockMsgsForTipset(ts)
 	if err != nil {
diff --git a/chain/stmgr/utils.go b/chain/stmgr/utils.go
index a95374b693..db6157b093 100644
--- a/chain/stmgr/utils.go
+++ b/chain/stmgr/utils.go
@@ -432,7 +432,7 @@ func ComputeState(ctx context.Context, sm *StateManager, height abi.ChainEpoch,
 		return cid.Undef, nil, err
 	}
 
-	r := store.NewChainRand(sm.cs, ts.Cids(), height)
+	r := store.NewChainRand(sm.cs, ts.Cids())
 	vmopt := &vm.VMOpts{
 		StateBase:      base,
 		Epoch:          height,
diff --git a/chain/store/store.go b/chain/store/store.go
index b71e7d4df2..01e8b6a711 100644
--- a/chain/store/store.go
+++ b/chain/store/store.go
@@ -1282,14 +1282,12 @@ func (cs *ChainStore) GetLatestBeaconEntry(ts *types.TipSet) (*types.BeaconEntry
 type chainRand struct {
 	cs   *ChainStore
 	blks []cid.Cid
-	bh   abi.ChainEpoch
 }
 
-func NewChainRand(cs *ChainStore, blks []cid.Cid, bheight abi.ChainEpoch) vm.Rand {
+func NewChainRand(cs *ChainStore, blks []cid.Cid) vm.Rand {
 	return &chainRand{
 		cs:   cs,
 		blks: blks,
-		bh:   bheight,
 	}
 }