diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
index 68c2ea4..9db0469 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangSubModule.java
@@ -17,7 +17,6 @@
 
 import java.util.LinkedList;
 import java.util.List;
-
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.utils.YangConstructType;
@@ -72,11 +71,13 @@
  *                | YANG-version | 7.1.2   | 0..1        | - int            |
  *                +--------------+---------+-------------+------------------+
  */
+
 /**
  * Represents data model node to maintain information defined in YANG sub-module.
  */
 public class YangSubModule extends YangNode
-        implements YangLeavesHolder, YangDesc, YangReference, Parsable, CollisionDetector, HasResolutionInfo {
+        implements YangLeavesHolder, YangDesc, YangReference, Parsable, CollisionDetector, HasResolutionInfo,
+        HasRpcNotification {
 
     /**
      * Name of sub module.
@@ -183,6 +184,7 @@
      * sub-statements of each ancestor statement.
      */
     private List<YangResolutionInfo> unresolvedResolutionList;
+
     /**
      * Creates a sub module node.
      */