diff --git a/pkgs/development/tools/rust/cargo-insta/default.nix b/pkgs/development/tools/rust/cargo-insta/default.nix
index 3b21fbf153c..e621fa9b972 100644
--- a/pkgs/development/tools/rust/cargo-insta/default.nix
+++ b/pkgs/development/tools/rust/cargo-insta/default.nix
@@ -1,4 +1,4 @@
-{ lib, rustPlatform, fetchFromGitHub, runCommand }:
+{ lib, rustPlatform, fetchFromGitHub }:
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-insta";