diff --git a/phf/src/lib.rs b/phf/src/lib.rs
index 5d71b4d1..4b9d1aad 100644
--- a/phf/src/lib.rs
+++ b/phf/src/lib.rs
@@ -9,7 +9,6 @@
 use std::fmt;
 use std::iter;
 use std::slice;
-use std::collections::Collection;
 
 pub use shared::PhfHash;