diff --git a/Update-Pixelator-Version.-.md b/Update-Pixelator-Version.-.md
index 3b8799b..019a2a5 100644
--- a/Update-Pixelator-Version.-.md
+++ b/Update-Pixelator-Version.-.md
@@ -63,7 +63,19 @@ The new code can be downloaded from `gitea.psi.ch`. There are 3 ways to do this:
    ```
    unzip -z Pixelator-master.zip
    ```
-The other way is to copy it from the gitea.psi.ch web page when you are downloading the archive. It is a bit hidden and the easiest way to find it is to right click on the latest commit short-hash and copy the link.
+   The other way is to copy it from the gitea.psi.ch web page when you are downloading the archive. It is a bit hidden and the easiest way to find it is to right click on the latest commit short-hash and copy the link - to find this, start at the blue `<> Code` button, go down one line and then left to the set of 10 characters in a box, e.g. `f260922198`. The link will look like `https://gitea.psi.ch/MicroSpectro/Pixelator/commit/f2609221982772e427a1fad28679b16db256bde5` and the hash you need is the last part, e.g. `f2609221982772e427a1fad28679b16db256bde5`. 
+   Open `gen_commit_hash.sh` in a text editor and replace the set of zeros with your hash. The file should end up looking something like this:
+   ```
+   #!/bin/sh
+   
+   if [ -f ".git/HEAD" ]; then 
+       v=`git rev-parse HEAD`
+   else
+       v="f2609221982772e427a1fad28679b16db256bde5"
+   fi
+   printf %s "$v"
+
+   ```