diff --git a/pkgs/by-name/co/cosmic-edit/package.nix b/pkgs/by-name/co/cosmic-edit/package.nix
index ea87434200eb..6352e94547da 100644
--- a/pkgs/by-name/co/cosmic-edit/package.nix
+++ b/pkgs/by-name/co/cosmic-edit/package.nix
@@ -38,7 +38,7 @@ rustPlatform.buildRustPackage rec {
   env.VERGEN_GIT_SHA = src.rev;
 
   postPatch = ''
-    substituteInPlace justfile --replace '#!/usr/bin/env' "#!$(command -v env)"
+    substituteInPlace justfile --replace-fail '#!/usr/bin/env' "#!$(command -v env)"
   '';
 
   nativeBuildInputs = [