diff --git a/management-service/src/main/java/pl/pwr/zpi/notifications/discord/DiscordNotificationService.java b/management-service/src/main/java/pl/pwr/zpi/notifications/discord/DiscordNotificationService.java
index 62c1376b..083537bb 100644
--- a/management-service/src/main/java/pl/pwr/zpi/notifications/discord/DiscordNotificationService.java
+++ b/management-service/src/main/java/pl/pwr/zpi/notifications/discord/DiscordNotificationService.java
@@ -26,8 +26,7 @@ public class DiscordNotificationService implements ReportNotifier {
 
     public void sendTestMessage(Long receiverDiscordId) {
         var receiver = discordReceiverService.getDiscordReceiver(receiverDiscordId);
-        String decodedWebhookUrl = confidentialTextEncoder.decrypt(receiver.getWebhookUrl());
-        sendTestMessage(decodedWebhookUrl);
+        sendTestMessage(receiver.getWebhookUrl());
     }
 
     private void sendTestMessage(String webhookUrl) {
diff --git a/management-service/src/main/java/pl/pwr/zpi/notifications/discord/dto/DiscordReceiverDTO.java b/management-service/src/main/java/pl/pwr/zpi/notifications/discord/dto/DiscordReceiverDTO.java
index a03d71b3..84539406 100644
--- a/management-service/src/main/java/pl/pwr/zpi/notifications/discord/dto/DiscordReceiverDTO.java
+++ b/management-service/src/main/java/pl/pwr/zpi/notifications/discord/dto/DiscordReceiverDTO.java
@@ -13,6 +13,6 @@ public class DiscordReceiverDTO {
     @Size(min = 2, max = 100, message = "The discord integration name must be from 2 to 100 characters.")
     private String name;
     @NotBlank(message = "Webhook url cannot be empty")
-    @Pattern(regexp = "https://discord.com/api/webhooks/[0-9]+/[a-zA-Z0-9\\-]+", message = "Provided webhook url is invalid")
+    @Pattern(regexp = "https://discord.com/api/webhooks/[0-9]+/[a-zA-Z0-9\\-_]+", message = "Provided webhook url is invalid")
     private String webhookUrl;
 }
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