diff --git a/src/ds/sequence.rs b/src/ds/sequence.rs
index d9fe29d..d3bf5f0 100644
--- a/src/ds/sequence.rs
+++ b/src/ds/sequence.rs
@@ -133,7 +133,7 @@ where
 {
     type Output = Idx::Output;
 
-    fn index(&self, index: Idx) -> &'a Self::Output {
+    fn index(&self, index: Idx) -> &Self::Output {
         &self.chain[index]
     }
 }