diff --git a/apps/demo/cord-gui/src/main/java/org/onosproject/cord/gui/model/XosFunction.java b/apps/demo/cord-gui/src/main/java/org/onosproject/cord/gui/model/XosFunction.java
index c580149..1721685 100644
--- a/apps/demo/cord-gui/src/main/java/org/onosproject/cord/gui/model/XosFunction.java
+++ b/apps/demo/cord-gui/src/main/java/org/onosproject/cord/gui/model/XosFunction.java
@@ -23,7 +23,7 @@
 /**
  * Designates a specific instance of an XOS function.
  */
-public interface XosFunction extends JsonBlob {
+public interface XosFunction {
 
     /**
      * Returns the descriptor for this function.