diff --git a/CHANGELOG.md b/CHANGELOG.md
index defc076686..2a321eb479 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Minor fixes to module docs.
 - Make MSRV of 1.87.0 explicit.
 
+- Implement `Default` for `CapacityError`
+
 ## [v0.9.1] - 2025-08-19
 
 ### Added
diff --git a/src/lib.rs b/src/lib.rs
index 08e0ab4ac2..656999eee4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -228,7 +228,7 @@ pub mod _export {
 }
 
 /// The error type for fallible [`Vec`] and [`String`] methods.
-#[derive(Debug)]
+#[derive(Debug, Default)]
 #[non_exhaustive]
 pub struct CapacityError;