diff --git a/internal/state/store.go b/internal/state/store.go
index bd14809e8..2d2e4dc81 100644
--- a/internal/state/store.go
+++ b/internal/state/store.go
@@ -28,6 +28,7 @@ const (
 
 // NB: Before modifying these, cross-check them with those in
 // internal/store/store.go
+// TODO(thane): Move these and the ones in internal/store/store.go to their own package.
 const (
 	// prefixes are unique across all tm db's
 	prefixValidators      = int64(5)
diff --git a/internal/store/store.go b/internal/store/store.go
index cb8b9c649..b88e24e2b 100644
--- a/internal/store/store.go
+++ b/internal/store/store.go
@@ -611,6 +611,7 @@ func (bs *BlockStore) Close() error {
 // key prefixes
 // NB: Before modifying these, cross-check them with those in
 // internal/state/store.go
+// TODO(thane): Move these and the ones in internal/state/store.go to their own package.
 const (
 	// prefixes are unique across all tm db's
 	prefixBlockMeta   = int64(0)