diff --git a/src/utility/list.rs b/src/utility/list.rs
index a90ec2b..88962c4 100644
--- a/src/utility/list.rs
+++ b/src/utility/list.rs
@@ -1,4 +1,5 @@
 
+#[derive(PartialEq)]
 pub struct List<T: PartialEq> {
     head: Link<T>,
 }