diff --git a/src/interval.rs b/src/interval.rs
index e52564e..43897c0 100644
--- a/src/interval.rs
+++ b/src/interval.rs
@@ -4,7 +4,6 @@ use std::{
     str,
     num::{self, NonZeroU64},
     fmt,
-    convert::TryFrom,
     iter::FromIterator,
     
 };