diff --git a/chain/store/splitstore/liveset.go b/chain/store/splitstore/liveset.go
new file mode 100644
index 000000000..51852c3d5
--- /dev/null
+++ b/chain/store/splitstore/liveset.go
@@ -0,0 +1,11 @@
+package splitstore
+
+import (
+	cid "github.com/ipfs/go-cid"
+)
+
+type LiveSet interface {
+	Mark(cid.Cid) error
+	Has(cid.Cid) (bool, error)
+	Close() error
+}
diff --git a/chain/store/splitstore/snoop.go b/chain/store/splitstore/snoop.go
new file mode 100644
index 000000000..b31ea16e9
--- /dev/null
+++ b/chain/store/splitstore/snoop.go
@@ -0,0 +1,15 @@
+package splitstore
+
+import (
+	cid "github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/go-state-types/abi"
+)
+
+type TrackingStore interface {
+	Put(cid.Cid, abi.ChainEpoch) error
+	PutBatch([]cid.Cid, abi.ChainEpoch) error
+	Get(cid.Cid) (abi.ChainEpoch, error)
+	Delete(cid.Cid) error
+	Keys() (<-chan cid.Cid, error)
+}
diff --git a/chain/store/splitstore/splitstore.go b/chain/store/splitstore/splitstore.go
index a5366ecd9..7d82ca709 100644
--- a/chain/store/splitstore/splitstore.go
+++ b/chain/store/splitstore/splitstore.go
@@ -41,20 +41,6 @@ type SplitStore struct {
 	compacting bool
 }
 
-type TrackingStore interface {
-	Put(cid.Cid, abi.ChainEpoch) error
-	PutBatch([]cid.Cid, abi.ChainEpoch) error
-	Get(cid.Cid) (abi.ChainEpoch, error)
-	Delete(cid.Cid) error
-	Keys() (<-chan cid.Cid, error)
-}
-
-type LiveSet interface {
-	Mark(cid.Cid) error
-	Has(cid.Cid) (bool, error)
-	Close() error
-}
-
 var _ bstore.Blockstore = (*SplitStore)(nil)
 
 // Blockstore interface