diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java
index e12f1ef..8603be5 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/AbstractVirtualProviderService.java
@@ -25,7 +25,7 @@
  * @param <P> type of the information provider
  */
 public abstract class AbstractVirtualProviderService<P extends VirtualProvider>
-        implements VirtualProviderService {
+        implements VirtualProviderService<P> {
 
     private boolean isValid = true;
     private P provider = null;