diff --git a/server/src/notifikace.ts b/server/src/notifikace.ts
index e7006b2..7dcf4c4 100644
--- a/server/src/notifikace.ts
+++ b/server/src/notifikace.ts
@@ -100,7 +100,7 @@ export const callNotifikace = async ({ input, teams = true, gotify = false, ntfy
     const notifications = [];
     if (ntfy) {
         if (input.user) {
-            input.user = Buffer.from(input.user, 'utf8').toString('base64');
+            input.user = input.user.normalize('NFD').replace(' ', '').replace(/[\u0300-\u036f]/g, '').toLowerCase();
         }
         const ntfyPromises = await ntfyCall(input);
         if (ntfyPromises) {