diff --git a/src/scripts/vnet/mcast/ip4 b/src/scripts/vnet/mcast/ip4
index 101f09b..e3db0ce 100644
--- a/src/scripts/vnet/mcast/ip4
+++ b/src/scripts/vnet/mcast/ip4
@@ -1,13 +1,13 @@
-packet-generator new {
-  name x
-  limit 1
-  node ip4-input
-  size 512-512
-  data {
-    ICMP: 1.0.0.2 -> 232.1.1.1
-    ICMP echo_request
-    incrementing 100
-  }
+packet-generator new {						\
+  name x							\
+  limit 1							\
+  node ip4-input						\
+  size 512-512							\
+  data {							\
+    ICMP: 1.0.0.2 -> 232.1.1.1					\
+    ICMP echo_request						\
+    incrementing 100						\
+  }								\
 }
 
 create packet-generator interface pg1