diff --git a/src/components/notifications/Slack.vue b/src/components/notifications/Slack.vue
index dc07bf373..a7c24251a 100644
--- a/src/components/notifications/Slack.vue
+++ b/src/components/notifications/Slack.vue
@@ -20,6 +20,9 @@
             <i18n-t tag="p" keypath="aboutWebhooks" style="margin-top: 8px;">
                 <a href="https://api.slack.com/messaging/webhooks" target="_blank">https://api.slack.com/messaging/webhooks</a>
             </i18n-t>
+            <p style="margin-top: 8px;">
+                {{ $t("aboutUsername", [$t("slack"), $t("Username"), $t("Friendly Name")]) }}
+            </p>
             <p style="margin-top: 8px;">
                 {{ $t("aboutChannelName", [$t("slack")]) }}
             </p>
diff --git a/src/lang/en.json b/src/lang/en.json
index 07d3a3d24..57b9e329a 100644
--- a/src/lang/en.json
+++ b/src/lang/en.json
@@ -731,6 +731,7 @@
     "Icon Emoji": "Icon Emoji",
     "signalImportant": "IMPORTANT: You cannot mix groups and numbers in recipients!",
     "aboutWebhooks": "More info about Webhooks on: {0}",
+    "aboutUsername": "The {0} {1} can change the display name of the message sender. This is not for mentions. If you want to mention someone, include it in the {2}.",
     "aboutChannelName": "Enter the channel name on {0} Channel Name field if you want to bypass the Webhook channel. Ex: #other-channel",
     "aboutKumaURL": "If you leave the Uptime Kuma URL field blank, it will default to the Project GitHub page.",
     "smtpDkimSettings": "DKIM Settings",