diff --git a/roles/xmpp_server/files/ferm_xmpp.conf b/roles/xmpp_server/files/ferm_xmpp.conf
index 2804a84a246632355ad12ab66c75ed19723e8f40..f1b2e8fb0f9d425e5d0f1c88e6d46928af22aaa3 100644
--- a/roles/xmpp_server/files/ferm_xmpp.conf
+++ b/roles/xmpp_server/files/ferm_xmpp.conf
@@ -1,11 +1,13 @@
-table filter {
-    chain INPUT {
-        # XMPP client connections.
-        proto tcp dport 5222 ACCEPT;
-        proto tcp dport 5223 ACCEPT;
-        # File proxying.
-        proto tcp dport 5000 ACCEPT;
-        # XMPP server connections.
-        proto tcp dport 5269 ACCEPT;
+domain (ip ip6) {
+    table filter {
+        chain INPUT {
+            # XMPP client connections.
+            proto tcp dport 5222 ACCEPT;
+            proto tcp dport 5223 ACCEPT;
+            # File proxying.
+            proto tcp dport 5000 ACCEPT;
+            # XMPP server connections.
+            proto tcp dport 5269 ACCEPT;
+        }
     }
-}
\ No newline at end of file
+}