diff --git a/api/src/com/cloud/api/Implementation.java b/api/src/com/cloud/api/Implementation.java
index ba7a556b1ca..6f0b965c3ec 100644
--- a/api/src/com/cloud/api/Implementation.java
+++ b/api/src/com/cloud/api/Implementation.java
@@ -22,10 +22,12 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import com.cloud.api.response.BaseResponse;
+
 @Retention(RetentionPolicy.RUNTIME)
 @Target({ TYPE })
 public @interface Implementation {
-    Class<?> responseObject();
+    Class<? extends BaseResponse> responseObject();
 
     String description() default "";
 
diff --git a/api/src/com/cloud/api/commands/UpdateStorageNetworkIpRangeCmd.java b/api/src/com/cloud/api/commands/UpdateStorageNetworkIpRangeCmd.java
index ff438fbf88c..7e0b05bad23 100755
--- a/api/src/com/cloud/api/commands/UpdateStorageNetworkIpRangeCmd.java
+++ b/api/src/com/cloud/api/commands/UpdateStorageNetworkIpRangeCmd.java
@@ -34,7 +34,7 @@ import com.cloud.exception.ResourceAllocationException;
 import com.cloud.exception.ResourceUnavailableException;
 import com.cloud.user.Account;
 
-@Implementation(description="Update a Storage network IP range, only allowed when no IPs in this range have been allocated.", responseObject=UpdateStorageNetworkIpRangeCmd.class, since="3.0.0")
+@Implementation(description="Update a Storage network IP range, only allowed when no IPs in this range have been allocated.", responseObject=StorageNetworkIpRangeResponse.class, since="3.0.0")
 public class UpdateStorageNetworkIpRangeCmd extends BaseAsyncCmd {
 	public static final Logger s_logger = Logger.getLogger(UpdateStorageNetworkIpRangeCmd.class);
 	private static final String s_name = "updatestoragenetworkiprangeresponse";
@@ -117,3 +117,4 @@ public class UpdateStorageNetworkIpRangeCmd extends BaseAsyncCmd {
 	}
 
 }
+