diff --git a/hosts/jabber/default.nix b/hosts/jabber/default.nix
index 1dd6f8d1..58d674d8 100644
--- a/hosts/jabber/default.nix
+++ b/hosts/jabber/default.nix
@@ -194,6 +194,14 @@ in
           -- How to get the IPv6 from config?
           external_addresses = { "${zentralwerk.lib.dns.publicIPv4}", "2a00:8180:2c00:282:e058:3ff:fea2:d83a", "${hostRegistry.jabber.ip4}", "${hostRegistry.jabber.ip6}" }
           trusted_proxies = { "127.0.0.1", "::1", "${hostRegistry.public-access-proxy.ip4}", "${hostRegistry.public-access-proxy.ip6}" }
+          http_cors_override = {
+            bosh = {
+              enabled = true;
+            };
+            websocket = {
+              enabled = true;
+            };
+          }
           http_default_host = "${domain}"
           http_host = "${domain}"
           http_external_url = "https://${domain}/"