diff --git a/customize/cyclonedds_zerotier.xml b/customize/cyclonedds_zerotier.xml
index 42b337d..343443a 100644
--- a/customize/cyclonedds_zerotier.xml
+++ b/customize/cyclonedds_zerotier.xml
@@ -5,7 +5,7 @@
             <Interfaces>
                 <NetworkInterface name="tailscale0"/>
             </Interfaces>
-            <AllowMulticast>true</AllowMulticast>
+            <AllowMulticast>false</AllowMulticast>
         </General>      
         <Discovery>
             <Peers>