diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0efe43b..dea7232 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## Next version
+
+### 🔧 Fixed
+
+* Fix rendering of Grafana URL in Slack message.
+
+
 ## 0.3.2 - 2024-11-11
 
 ### ✨ Improved
diff --git a/src/lvmcryo/notifier.py b/src/lvmcryo/notifier.py
index 0c3c384..c14dea6 100644
--- a/src/lvmcryo/notifier.py
+++ b/src/lvmcryo/notifier.py
@@ -279,7 +279,7 @@ async def notify_after_fill(
                     slack_message = (
                         "Something went wrong with the LN₂ fill. "
                         "Please check the status of the spectrographs. "
-                        "Grafana plots are available <GRAFANA_URL|here>."
+                        f"Grafana plots are available <{GRAFANA_URL}|here>."
                     )
                     if error_message:
                         if isinstance(error_message, Exception):