diff --git a/pkgs/development/haskell-modules/HACKING.md b/pkgs/development/haskell-modules/HACKING.md
index 21b1f7091fef..c230d29840cc 100644
--- a/pkgs/development/haskell-modules/HACKING.md
+++ b/pkgs/development/haskell-modules/HACKING.md
@@ -48,7 +48,9 @@ In this section we create the PR for merging `haskell-updates` into `master`.
 
 1.  Open a PR on Nixpkgs merging `haskell-updates` into `master`.
 
-Use the following message body:
+
+
+Use the title `haskellPackages: update stackage and hackage` and the following message body:
 
 ```markdown
 ### This Merge