diff --git a/pkgs/applications/editors/kakoune/plugins/kak-vertical-selection.nix b/pkgs/applications/editors/kakoune/plugins/kak-vertical-selection.nix
index ccc80ac8d81..2ef9d44854f 100644
--- a/pkgs/applications/editors/kakoune/plugins/kak-vertical-selection.nix
+++ b/pkgs/applications/editors/kakoune/plugins/kak-vertical-selection.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub }:
+{ stdenv, fetchFromGitHub, lib }:
 stdenv.mkDerivation {
   name = "kak-vertical-selection";
   version = "2019-04-11";