diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
index a402908..63a0087 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/IPv6Address.java
@@ -116,7 +116,7 @@
     }
 
     /**
-     * IPv4 multicast addresses are defined by the prefix ff00::/8 
+     * IPv6 multicast addresses are defined by the prefix ff00::/8 
      */
     @Override
     public boolean isMulticast() {
diff --git a/java_gen/pre-written/src/test/java/org/projectfloodlight/openflow/types/IPAddressTest.java b/java_gen/pre-written/src/test/java/org/projectfloodlight/openflow/types/IPAddressTest.java
index f33de0e..6e9d047 100644
--- a/java_gen/pre-written/src/test/java/org/projectfloodlight/openflow/types/IPAddressTest.java
+++ b/java_gen/pre-written/src/test/java/org/projectfloodlight/openflow/types/IPAddressTest.java
@@ -133,7 +133,7 @@
     @Test
     public void testMulticastIp() {
         IPAddress<?> ip0 = IPAddress.of("240.2.3.4");
-        IPAddress<?> ip1 = IPAddress.of("224.0.0.0");
+        IPAddress<?> ip1 = IPAddress.of("224.0.1.1");
         IPAddress<?> ip2 = IPAddress.of("239.0.0.0");
         IPAddress<?> ip3 = IPAddress.of("feff::1");
         IPAddress<?> ip4 = IPAddress.of("ff00::1");