diff --git a/src/flow/binary/bounds/bound.rs b/src/flow/binary/bounds/bound.rs
index a3909ea..958402a 100644
--- a/src/flow/binary/bounds/bound.rs
+++ b/src/flow/binary/bounds/bound.rs
@@ -26,10 +26,7 @@ trait BinaryTreesBindable<'a>: BinaryTrees<'a> {
     fn bounds_error<T: 'a>(&self, error: BoundsError<Self::Key>) -> BTWrap<'a, Self, T>;
 }
 
-impl<'a, BT: BinaryTreesBindable<'a>> BinaryTrees<'a> for BoundTrees<BT>
-where
-    BT::Tree: Clone,
-{
+impl<'a, BT: BinaryTreesBindable<'a>> BinaryTrees<'a> for BoundTrees<BT> {
     type Node = BoundNode2<Self::Key, BT::Node>;
 
     type Reference = Bound<Self::Key, BT::Reference>;