diff --git a/main.go b/main.go
index e726f2b..766785b 100644
--- a/main.go
+++ b/main.go
@@ -56,8 +56,8 @@ func (ph *PHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	log.Printf("%s %s", r.RemoteAddr, r.Form.Encode())
 
-	msg := r.Form.Get("msg")
-	if msg == "" {
+	m := r.Form.Get("m")
+	if m == "" {
 		err = ph.tmpl.Execute(w, ph.envs())
 		if err != nil {
 			http.Error(w, fmt.Sprintf("execute %s: %s\n", ph.tmpl.Name(), err), http.StatusBadRequest)
@@ -72,7 +72,7 @@ func (ph *PHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		RoutingKey:  ph.routingKey,
 		EventAction: "trigger",
 		Payload: PDPayload{
-			Summary:  msg,
+			Summary:  m,
 			Source:   r.RemoteAddr,
 			Severity: "critical",
 		},
diff --git a/static/index.html b/static/index.html
index ce4f57f..1352058 100644
--- a/static/index.html
+++ b/static/index.html
@@ -61,9 +61,9 @@ function error(err1, err2) {
 }
 
 async function page() {
-	const msg = document.getElementById('message').value;
+	const m = document.getElementById('message').value;
 
-	if (msg == '') {
+	if (m == '') {
 		error('Please fill in Message', '');
 		return;
 	}
@@ -71,7 +71,7 @@ async function page() {
 	clearAlerts();
 
 	const params = new URLSearchParams({
-		msg: msg,
+		m: m,
 	});
 
 	const resp = await fetch(
@@ -189,7 +189,7 @@ async function page() {
 							<span id="curl"></span>
 							<sl-copy-button from="curl"></sl-copy-button>
 							<script>
-								document.getElementById('curl').innerText = `curl -d 'msg=test' ${window.location.href}`;
+								document.getElementById('curl').innerText = `curl -d 'm=test' ${window.location.href}`;
 							</script>
 						</div>