diff --git a/pkgs/by-name/re/redocly-cli/package.nix b/pkgs/by-name/re/redocly-cli/package.nix
index 18d853c58da9..d22b09b53a41 100644
--- a/pkgs/by-name/re/redocly-cli/package.nix
+++ b/pkgs/by-name/re/redocly-cli/package.nix
@@ -21,6 +21,10 @@ buildNpmPackage rec {
 
   nativeBuildInputs = [ makeWrapper ];
 
+  postBuild = ''
+    npm --prefix packages/cli run copy-assets
+  '';
+
   postInstall = ''
     rm $out/lib/node_modules/@redocly/cli/node_modules/@redocly/{cli,openapi-core}
     cp -R packages/cli $out/lib/node_modules/@redocly/cli/node_modules/@redocly/cli