diff --git a/setup/automation/distributed-iso-sensor b/setup/automation/distributed-iso-sensor
index 5df368336..9752e0f24 100644
--- a/setup/automation/distributed-iso-sensor
+++ b/setup/automation/distributed-iso-sensor
@@ -50,7 +50,7 @@ MNIC=eth0
 # MSEARCH=
 MSRV=distributed-manager
 MSRVIP=10.66.166.42
-# MTU=
+MTU=1500
 # NIDS=Suricata
 # NODE_ES_HEAP_SIZE=
 # NODE_LS_HEAP_SIZE=