Fix a bug when printing the topology elements.
diff --git a/src/main/java/net/onrc/onos/datagrid/web/GetMapResource.java b/src/main/java/net/onrc/onos/datagrid/web/GetMapResource.java
index 6c66c90..124ac28 100644
--- a/src/main/java/net/onrc/onos/datagrid/web/GetMapResource.java
+++ b/src/main/java/net/onrc/onos/datagrid/web/GetMapResource.java
@@ -75,7 +75,7 @@
 	    Collection<TopologyElement> topologyElements = datagridService.getAllTopologyElements();
 	    result += "Topology:\n";
 	    for (TopologyElement topologyElement : topologyElements) {
-		result += topologyElements.toString() + "\n";
+		result += topologyElement.toString() + "\n";
 	    }
 	}