diff --git a/src/main/java/net/onrc/onos/core/topology/BaseTopologyAdaptor.java b/src/main/java/net/onrc/onos/core/topology/BaseTopologyAdaptor.java
index 3c6317e..2a6ac33 100644
--- a/src/main/java/net/onrc/onos/core/topology/BaseTopologyAdaptor.java
+++ b/src/main/java/net/onrc/onos/core/topology/BaseTopologyAdaptor.java
@@ -6,8 +6,10 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+
 import net.floodlightcontroller.util.MACAddress;
 import net.onrc.onos.core.util.Dpid;
+import net.onrc.onos.core.util.OnosInstanceId;
 import net.onrc.onos.core.util.PortNumber;
 import net.onrc.onos.core.util.SwitchPort;
 
@@ -268,4 +270,10 @@
     public Collection<Host> getHosts(SwitchPort port) {
         return toHostImpls(internal, internal.getHostEvents(port));
     }
+
+
+    @Override
+    public OnosInstanceId getSwitchMaster(Dpid dpid) {
+        return internal.getSwitchMaster(dpid);
+    }
 }