diff --git a/acp/discord_notifications_module.php b/acp/discord_notifications_module.php
index 55813e3..90736bb 100644
--- a/acp/discord_notifications_module.php
+++ b/acp/discord_notifications_module.php
@@ -58,9 +58,13 @@ class discord_notifications_module
 	/** @var \phpbb\user */
 	protected $user;
 
+	/** @var bool */
+	private  $curl_available;
+
 	public function main($id, $mode)
 	{
 		global $phpbb_container;
+
 		$this->cache = $phpbb_container->get('cache.driver');
 		$this->config = $phpbb_container->get('config');
 		$this->db = $phpbb_container->get('dbal.conn');
@@ -69,6 +73,7 @@ public function main($id, $mode)
 		$this->request = $phpbb_container->get('request');
 		$this->template = $phpbb_container->get('template');
 		$this->user = $phpbb_container->get('user');
+		$this->curl_available = extension_loaded('curl');
 
 		$this->language->add_lang('acp_discord_notifications', 'mober/discordnotifications');
 		$this->page_title = $this->language->lang('ACP_DISCORD_NOTIFICATIONS');
@@ -146,6 +151,7 @@ public function main($id, $mode)
 
 			'DN_DEFAULT_WEBHOOK'		=> $this->config['discord_notification_default_webhook'],
 
+			'DN_CURL_AVAILABLE'			=> $this->curl_available,
 			'U_ACTION'					=> $this->u_action,
 		));
 	}
diff --git a/adm/style/acp_discord_notifications_mapping.html b/adm/style/acp_discord_notifications_mapping.html
index 5151791..0c5a3bf 100644
--- a/adm/style/acp_discord_notifications_mapping.html
+++ b/adm/style/acp_discord_notifications_mapping.html
@@ -4,6 +4,12 @@ <h1>{{ lang('ACP_DISCORD_NOTIFICATIONS') }}</h1>
 
 <p>{{ DN_ACP_DESCRIPTION }}</p>
 
+{% if not DN_CURL_AVAILABLE %}
+	<div class="errorbox">
+		<p>{{ lang('DN_MISSING_CURL') }}</p>
+	</div>
+{% endif %}
+
 <form id="acp_board" method="post" action="{{ U_ACTION }}">
 
 	<fieldset>
diff --git a/adm/style/acp_discord_notifications_settings.html b/adm/style/acp_discord_notifications_settings.html
index 760a05a..95e9827 100644
--- a/adm/style/acp_discord_notifications_settings.html
+++ b/adm/style/acp_discord_notifications_settings.html
@@ -4,6 +4,12 @@ <h1>{{ lang('ACP_DISCORD_NOTIFICATIONS') }}</h1>
 
 <p>{{ DN_ACP_DESCRIPTION }}</p>
 
+{% if not DN_CURL_AVAILABLE %}
+	<div class="errorbox">
+		<p>{{ lang('DN_MISSING_CURL') }}</p>
+	</div>
+{% endif %}
+
 <form id="acp_board" method="post" action="{{ U_ACTION }}">
 
 	<fieldset>
diff --git a/adm/style/acp_discord_notifications_webhooks.html b/adm/style/acp_discord_notifications_webhooks.html
index 6094e9a..cb4257d 100644
--- a/adm/style/acp_discord_notifications_webhooks.html
+++ b/adm/style/acp_discord_notifications_webhooks.html
@@ -4,8 +4,13 @@ <h1>{{ lang('ACP_DISCORD_NOTIFICATIONS') }}</h1>
 
 <p>{{ DN_ACP_DESCRIPTION }}</p>
 
-<form id="acp_board" method="post" action="{{ U_ACTION }}">
+{% if not DN_CURL_AVAILABLE %}
+	<div class="errorbox">
+		<p>{{ lang('DN_MISSING_CURL') }}</p>
+	</div>
+{% endif %}
 
+<form id="acp_board" method="post" action="{{ U_ACTION }}">
 
 	<fieldset>
 		<legend>{{ lang('DN_WEBHOOK_SETTINGS') }}</legend>
diff --git a/language/de/acp_discord_notifications.php b/language/de/acp_discord_notifications.php
index 98030f4..d5129e7 100644
--- a/language/de/acp_discord_notifications.php
+++ b/language/de/acp_discord_notifications.php
@@ -21,6 +21,7 @@
 $lang = array_merge($lang, array(
 	// ACP Extension Settings Page
 	'DN_ACP_DESCRIPTION'			=> 'Diese Einstellungen erlauben es, bei verschiedenen Ereignissen eine Benachrichtigung an einen Discord-Kanal zu schicken.',
+	'DN_MISSING_CURL'				=> 'Damit diese Erweiterung funktioniert, musst du das <a href="https://www.php.net/manual/de/curl.installation.php">ext-curl Modul für PHP installieren.</a>',
 
 	'DN_MAIN_SETTINGS'				=> 'Konfiguration',
 	'DN_MASTER_ENABLE'				=> 'Discord Benachrichtigungen aktivieren',
diff --git a/language/en/acp_discord_notifications.php b/language/en/acp_discord_notifications.php
index 22ec103..dd2f182 100644
--- a/language/en/acp_discord_notifications.php
+++ b/language/en/acp_discord_notifications.php
@@ -21,6 +21,7 @@
 $lang = array_merge($lang, array(
 	// ACP Extension Settings Page
 	'DN_ACP_DESCRIPTION'			=> 'These settings allow for various forum events to send notification messages to a Discord server.',
+	'DN_MISSING_CURL'				=> 'Please install the <a href="https://www.php.net/manual/en/curl.installation.php">ext-curl module for PHP</a>, otherwise this extension will not work.',
 
 	'DN_MAIN_SETTINGS'				=> 'Main Settings',
 	'DN_MASTER_ENABLE'				=> 'Enable Discord Notifications',
diff --git a/language/fr/acp_discord_notifications.php b/language/fr/acp_discord_notifications.php
index 9f6ee59..16dea7d 100644
--- a/language/fr/acp_discord_notifications.php
+++ b/language/fr/acp_discord_notifications.php
@@ -42,6 +42,7 @@
 $lang = array_merge($lang, array(
 	// ACP Extension Settings Page
 	'DN_ACP_DESCRIPTION'			=> 'Depuis cette page il est possible de définir les paramètres permettant à différents évènements du forum d’être envoyés comme notification sur un serveur Discord.',
+	'DN_MISSING_CURL'				=> 'Pour que cette extension fonctionne, tu dois installer le module <a href="https://www.php.net/manual/fr/curl.installation.php">ext-curl pour PHP</a>.',
 
 	'DN_MAIN_SETTINGS'				=> 'Paramètres généraux',
 	'DN_MASTER_ENABLE'				=> 'Activer les notifications Discord',