diff --git a/src/main/java/org/onosproject/igmp/IgmpSnoop.java b/src/main/java/org/onosproject/igmp/IgmpSnoop.java
index 4a3fc94..b9aeafb 100644
--- a/src/main/java/org/onosproject/igmp/IgmpSnoop.java
+++ b/src/main/java/org/onosproject/igmp/IgmpSnoop.java
@@ -419,11 +419,11 @@
 
 
             if (ip.getProtocol() != IPv4.PROTOCOL_IGMP ||
-                    !IpPrefix.MULTICAST_RANGE.contains(gaddr)) {
+                    !IpPrefix.IPV4_MULTICAST_RANGE.contains(gaddr)) {
                 return;
             }
 
-            if (IpPrefix.MULTICAST_RANGE.contains(saddr)) {
+            if (IpPrefix.IPV4_MULTICAST_RANGE.contains(saddr)) {
                 log.debug("IGMP Picked up a packet with a multicast source address.");
                 return;
             }