diff --git a/src/flow/binary.rs b/src/flow/binary.rs
index 41fe14b..dd8195c 100644
--- a/src/flow/binary.rs
+++ b/src/flow/binary.rs
@@ -1,5 +1,6 @@
 pub mod avl;
 pub mod balancing;
+pub mod bound;
 pub mod bounds;
 
 use crate::flow::comparator::*;
diff --git a/src/flow/binary/balancing.rs b/src/flow/binary/balancing.rs
index 9fd1711..0df0eb6 100644
--- a/src/flow/binary/balancing.rs
+++ b/src/flow/binary/balancing.rs
@@ -1,6 +1,6 @@
 use std::fmt::Display;
 
-use super::{avl::*, bounds::bound::BinaryTreesBindable, *};
+use super::{avl::*, bound::*, *};
 
 pub trait BinaryTreesUnbalanced<'a>: BinaryTreesHeight<'a> {
     fn tree_of_with_height(&self, node: Self::Node, height: u64) -> BTWrap<'a, Self, Self::Tree>;
diff --git a/src/flow/binary/bounds/bound.rs b/src/flow/binary/bound.rs
similarity index 98%
rename from src/flow/binary/bounds/bound.rs
rename to src/flow/binary/bound.rs
index 7fc5620..0bf5ff0 100644
--- a/src/flow/binary/bounds/bound.rs
+++ b/src/flow/binary/bound.rs
@@ -1,8 +1,7 @@
-use crate::flow::binary::avl::*;
-use crate::flow::binary::*;
-use crate::func::context::*;
-
+use super::avl::*;
+use super::bounds::*;
 use super::*;
+use crate::func::context::*;
 
 #[derive(Clone)]
 pub struct Bound<A, T> {
diff --git a/src/flow/binary/bounds.rs b/src/flow/binary/bounds.rs
index 8069798..dc1b12c 100644
--- a/src/flow/binary/bounds.rs
+++ b/src/flow/binary/bounds.rs
@@ -1,5 +1,3 @@
-pub mod bound;
-
 use crate::flow::comparator::*;
 
 #[derive(Clone)]
diff --git a/src/mrds/trees/heighted.rs b/src/mrds/trees/heighted.rs
index fafbd2b..d1172c9 100644
--- a/src/mrds/trees/heighted.rs
+++ b/src/mrds/trees/heighted.rs
@@ -1,7 +1,7 @@
 use std::{fmt::Display, marker::PhantomData, rc::Rc};
 
 use crate::flow::{
-    binary::{balancing::*, bounds::bound::*, *},
+    binary::{balancing::*, bound::*, *},
     comparator::*,
 };
 use crate::func::{context::*, *};