diff --git a/metrics-core/src/lib.rs b/metrics-core/src/lib.rs
index 3972490..55649c0 100644
--- a/metrics-core/src/lib.rs
+++ b/metrics-core/src/lib.rs
@@ -32,7 +32,6 @@
 //!
 //! Histograms are a convenient way to measure behavior not only at the median, but at the edges of
 //! normal operating behavior.
-use std::fmt::Display;
 use futures::future::Future;
 
 /// A value that records metrics.