diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 324c5f17f7a..d85d9e481f2 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,6 +1,9 @@
 ###### Things done
 
-- [ ] Tested using sandboxing (`nix-build --option build-use-sandbox true` or [nix.useSandbox](http://nixos.org/nixos/manual/options.html#opt-nix.useSandbox) on NixOS)
+- [ ] Tested using sandboxing
+  ([nix.useSandbox](http://nixos.org/nixos/manual/options.html#opt-nix.useSandbox) on NixOS,
+    or option `build-use-sandbox` in [`nix.conf`](http://nixos.org/nix/manual/#sec-conf-file)
+    on non-NixOS)
 - Built on platform(s)
    - [ ] NixOS
    - [ ] OS X