diff --git a/src/data/cache.rs b/src/data/cache.rs
index 6c81008..9fbeb9e 100644
--- a/src/data/cache.rs
+++ b/src/data/cache.rs
@@ -6,17 +6,6 @@ use tokio::sync::{
     mpsc,
     watch,
 };
-use tokio::time::Duration;
-
-/// How many unprocessed insertion requests are allowed in the backlog before the insertion stream backpressures?
-pub const CACHE_SEND_BUFFER_SIZE: usize = 30;
-/// How many insertion requests should be grouped before emitting them all as blocks downstream.
-pub const CACHE_GATE_BUFFER_SIZE: usize = 80;
-/// How long should a partial block be kept in the gate buffer with an open upstream before being sent by force.
-pub const CACHE_GATE_TIMEOUT: Duration = duration!(100 ms);
-/// How long should the insertion stream be forced to wait before accepting new blocks to insert.
-pub const CACHE_GATED_LAG: Duration = duration!(10 ms);
-
 
 #[derive(Debug)]
 struct INodeCache
diff --git a/src/data/mod.rs b/src/data/mod.rs
index 904152e..82c0fb4 100644
--- a/src/data/mod.rs
+++ b/src/data/mod.rs
@@ -1,6 +1,16 @@
 //! Datatypes for the program
 use super::*;
 use std::fs::Metadata;
+use tokio::time::Duration;
+
+/// How many unprocessed insertion requests are allowed in the backlog before the insertion stream backpressures?
+pub const CACHE_SEND_BUFFER_SIZE: usize = 30;
+/// How many insertion requests should be grouped before emitting them all as blocks downstream.
+pub const CACHE_GATE_BUFFER_SIZE: usize = 80;
+/// How long should a partial block be kept in the gate buffer with an open upstream before being sent by force.
+pub const CACHE_GATE_TIMEOUT: Duration = duration!(100 ms);
+/// How long should the insertion stream be forced to wait before accepting new blocks to insert.
+pub const CACHE_GATED_LAG: Duration = duration!(10 ms);
 
 mod cache; pub use cache::*;