diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java b/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
index 8ee346b..b32a26e 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImpl.java
@@ -24,7 +24,7 @@
  */
 public class LinkStorageImpl implements ILinkStorage {
 	
-	protected static Logger log = LoggerFactory.getLogger(LinkStorageImpl.class);
+	protected final static Logger log = LoggerFactory.getLogger(LinkStorageImpl.class);
 	protected GraphDBOperation dbop;
 
 	/**