diff --git a/soustredeni/models.py b/soustredeni/models.py
index e5d11ae9..d18d8da6 100644
--- a/soustredeni/models.py
+++ b/soustredeni/models.py
@@ -18,8 +18,11 @@ from django.utils import timezone
 def generate_filename_kontaktnicek(self, filename):
 	# generate random string
 	length = 32
-	file_type = filename.split('.')[-1]
-	fname = "kontaktnicky/" + timezone.now().strftime('%Y-%m-%d-%H_%M') + ""
+	if len(filename.split('.')) == 1:
+		file_type = 'lol_neumíš_tam_dát_příponu'
+	else:
+		file_type = filename.split('.')[-1]
+	fname = timezone.now().strftime('%Y-%m-%d-%H_%M') + ""
 	fname += ''.join(secrets.choice(string.ascii_uppercase + string.digits) for _ in range(length))
 	fname += '.' + file_type
 	return os.path.join(settings.SOUSTREDENI_KONTAKTNICKY_DIR, fname)