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 26e6e12..02e0ffb 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/topology/TopologyManager.java
@@ -225,11 +225,15 @@
 	    SwitchPort dest = flowPath.dataPath().dstPort();
 	    return ShortestPath.getTopologyShortestPath(topology, src, dest);
 	}
+
 	case FP_TYPE_EXPLICIT_PATH:
 	    return flowPath.dataPath();
-	default:
-		return null;
+
+	case FP_TYPE_UNKNOWN:
+	    return null;
 	}
+
+	return null;
     }
 
     /**