diff --git a/default/systemd/user/omarchy-speaker-tuning.service b/default/systemd/user/omarchy-speaker-tuning.service
index ed6145a9584..7c7150c609d 100644
--- a/default/systemd/user/omarchy-speaker-tuning.service
+++ b/default/systemd/user/omarchy-speaker-tuning.service
@@ -1,6 +1,6 @@
 [Unit]
 Description=Omarchy speaker tuning filter-chain
-Documentation=https://github.com/omacom/omarchy/blob/master/docs/audio-tuning.md
+Documentation=https://github.com/omacom/omarchy/blob/HEAD/docs/audio-tuning.md
 # WirePlumber does the linking, so starting before it is up risks the output being
 # linked before the speaker device has been discovered.
 After=pipewire.service wireplumber.service