diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18d84c40a3..f28b6f8c55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,7 +21,6 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ## [0.17.0] - 3 February 2020
 ### Added
 - Add `CLK_TCK` to `SysconfVar`
-- Added `CLK_TCK` to `SysconfVar`
   (#[1177](https://github.com/nix-rust/nix/pull/1177))
 ### Changed
 ### Fixed