diff --git a/src/phillips_dessouky.rs b/src/phillips_dessouky.rs
index f54a5d1..19d05e9 100644
--- a/src/phillips_dessouky.rs
+++ b/src/phillips_dessouky.rs
@@ -7,7 +7,7 @@ use pathfinding::directed::edmonds_karp::{
     edmonds_karp
 };
 
-use std::time::{Instant, Duration};
+use std::time::Instant;
 use log::info;