diff --git a/filcnaplo/lib/api/login.dart b/filcnaplo/lib/api/login.dart
index 02ec3a8..c17bf08 100644
--- a/filcnaplo/lib/api/login.dart
+++ b/filcnaplo/lib/api/login.dart
@@ -49,10 +49,16 @@ Future loginApi({
 }) async {
   Provider.of<KretaClient>(context, listen: false).userAgent =
       Provider.of<SettingsProvider>(context, listen: false).config.userAgent;
-
+  
   Map<String, String> headers = {
     "content-type": "application/x-www-form-urlencoded",
   };
+  
+  String nonceStr = await Provider.of<KretaClient>(context, listen: false)
+      .getAPI(KretaAPI.nonce, json: false);
+  
+  Nonce nonce = getNonce(nonceStr, username, instituteCode);
+  headers.addAll(nonce.header());
 
   Map? res = await Provider.of<KretaClient>(context, listen: false)
       .postAPI(KretaAPI.login,