diff --git a/lib/stampede/interact.ex b/lib/stampede/interact.ex
index 6569fff..3948400 100644
--- a/lib/stampede/interact.ex
+++ b/lib/stampede/interact.ex
@@ -2,6 +2,7 @@ defmodule Stampede.Interact do
   require Logger
   alias Stampede, as: S
   alias S.Tables.{Ids, Interactions, ChannelLocks}
+  import S.Tables, only: [transaction!: 1]
   use TypeCheck
   use TypeCheck.Defstruct
 
@@ -303,16 +304,6 @@ defmodule Stampede.Interact do
     end)
   end
 
-  @spec! transaction!((... -> any())) :: any()
-  def transaction!(f) do
-    Memento.Transaction.execute!(f, 10)
-  end
-
-  @spec! transaction_sync!((... -> any())) :: any()
-  def transaction_sync!(f) do
-    Memento.Transaction.execute_sync!(f, 10)
-  end
-
   @spec! id_exists?(S.interaction_id()) :: boolean()
   def id_exists?(id) do
     transaction!(fn ->
diff --git a/lib/stampede/tables.ex b/lib/stampede/tables.ex
index bdb9db8..2dcf36e 100644
--- a/lib/stampede/tables.ex
+++ b/lib/stampede/tables.ex
@@ -1,4 +1,7 @@
 defmodule Stampede.Tables do
+  @moduledoc """
+  Manage various Mnesia tables.
+  """
   require Logger
   use TypeCheck
   alias Stampede, as: S
@@ -24,6 +27,16 @@ defmodule Stampede.Tables do
     :ok
   end
 
+  @spec! transaction!((... -> any())) :: any()
+  def transaction!(f) do
+    Memento.Transaction.execute!(f, 10)
+  end
+
+  @spec! transaction_sync!((... -> any())) :: any()
+  def transaction_sync!(f) do
+    Memento.Transaction.execute_sync!(f, 10)
+  end
+
   def clear_all_tables() do
     Logger.info("Tables: clearing all tables for #{Mix.env()}")