diff --git a/data/powerdns/files/bind-zones/franzi.business b/data/powerdns/files/bind-zones/franzi.business
index 65d1733..ac99cd7 100644
--- a/data/powerdns/files/bind-zones/franzi.business
+++ b/data/powerdns/files/bind-zones/franzi.business
@@ -35,7 +35,7 @@ vliedel.random  IN  AAAA    2a01:4f8:10b:2a5f::2
 wiki            IN  A       94.130.52.224
 wiki            IN  AAAA    2a01:4f8:10b:2a5f::2
 
-_matrix._tcp    IN  SRV     10 10 8448 matrix
+_matrix._tcp    IN  SRV     10 10 443 matrix
 
 _dmarc          IN  TXT     "v=DMARC1; p=quarantine; rua=mailto:postmaster@kunsmann.eu; ruf=mailto:postmaster@kunsmann.eu; fo=0:d:s; adkim=r; aspf=r"
 _mta-sts        IN  TXT     "v=STSv1;id=20201111;"