diff --git a/kube_notify/mattermost.py b/kube_notify/mattermost.py
index 303e522..b769888 100644
--- a/kube_notify/mattermost.py
+++ b/kube_notify/mattermost.py
@@ -6,7 +6,7 @@
 
 
 def send_mattermost_message(
-    url: str,
+    webhook: str,
     title: str,
     description: str,
     fields: dict,
@@ -25,6 +25,6 @@ def send_mattermost_message(
     channel and data.update({"channel": channel})
     username and data.update({"username": username})
     icon_url and data.update({"icon_url": icon_url})
-    response = requests.post(url, headers=headers, data=json.dumps(data))
+    response = requests.post(webhook, headers=headers, data=json.dumps(data))
     if response.status_code != 200:
         logger.logger.error("Failed to send notification to Mattermost")
diff --git a/kube_notify/notifications.py b/kube_notify/notifications.py
index 3706e8e..b7aa80a 100644
--- a/kube_notify/notifications.py
+++ b/kube_notify/notifications.py
@@ -76,7 +76,7 @@ async def handle_notify(
                 if group_values := group.get("mattermost"):
                     notifs.append(f"{group_name}/mattermost")
                     mattermost.send_mattermost_message(
-                        group_values["url"],
+                        group_values["webhook"],
                         title,
                         description,
                         fields,