diff --git a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DhcpWebResource.java b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DhcpWebResource.java
index 7cae850..fb4ee79 100644
--- a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DhcpWebResource.java
+++ b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DhcpWebResource.java
@@ -38,6 +38,7 @@
 import java.util.Date;
 import java.util.Map;
 
+import static org.onlab.util.Tools.readTreeFromStream;
 import static org.onosproject.dhcp.IpAssignment.AssignmentStatus.Option_Requested;
 
 /**
@@ -118,7 +119,7 @@
     public Response setMapping(InputStream stream) {
         ObjectNode root = mapper().createObjectNode();
         try {
-            ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+            ObjectNode jsonTree = readTreeFromStream(mapper(), stream);
             JsonNode macID = jsonTree.get("mac");
             JsonNode ip = jsonTree.get("ip");
             if (macID != null && ip != null) {