diff --git a/pkgs/development/ruby-modules/bundler-app/default.nix b/pkgs/development/ruby-modules/bundler-app/default.nix
index a269e719564..d1b8e87aaeb 100644
--- a/pkgs/development/ruby-modules/bundler-app/default.nix
+++ b/pkgs/development/ruby-modules/bundler-app/default.nix
@@ -59,6 +59,4 @@ in
       find -L ${basicEnv}/${ruby.gemPath}/gems/${basicEnv.name} \( -wholename "*/man/*.$section" -o -wholename "*/man/man$section/*.$section" \) -print -execdir mkdir -p $mandir \; -execdir cp '{}' $mandir \;
     done
     ''}
-
-    ${postBuild}
   ''