diff --git a/core/api/src/main/java/org/onosproject/net/group/GroupStore.java b/core/api/src/main/java/org/onosproject/net/group/GroupStore.java
index 7ccab8a..0821604 100644
--- a/core/api/src/main/java/org/onosproject/net/group/GroupStore.java
+++ b/core/api/src/main/java/org/onosproject/net/group/GroupStore.java
@@ -24,7 +24,7 @@
  */
 public interface GroupStore extends Store<GroupEvent, GroupStoreDelegate> {
 
-    public enum UpdateType {
+    enum UpdateType {
         /**
          * Modify existing group entry by adding provided information.
          */