diff --git a/web/api/src/main/java/org/onosproject/rest/resources/ClusterWebResource.java b/web/api/src/main/java/org/onosproject/rest/resources/ClusterWebResource.java
index ee608b7..dd9b9fc 100644
--- a/web/api/src/main/java/org/onosproject/rest/resources/ClusterWebResource.java
+++ b/web/api/src/main/java/org/onosproject/rest/resources/ClusterWebResource.java
@@ -77,6 +77,7 @@
      *
      * @param config cluster definition
      * @return 200 OK
+     * @throws IOException to signify bad request
      */
     @POST
     @Path("configuration")