diff --git a/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java b/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java
index 81ff599..ccb64f8 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java
@@ -25,7 +25,7 @@
  */
 public class TopologyManager implements IFloodlightModule,
 					ITopologyNetService {
-    private static Logger log = LoggerFactory.getLogger(TopologyManager.class);
+    private final static Logger log = LoggerFactory.getLogger(TopologyManager.class);
     protected IFloodlightProviderService floodlightProvider;
 
     protected GraphDBOperation dbHandler;