diff --git a/src/main/java/org/opensearch/knn/plugin/KNNPlugin.java b/src/main/java/org/opensearch/knn/plugin/KNNPlugin.java
index b04717e3d5..122b77929f 100644
--- a/src/main/java/org/opensearch/knn/plugin/KNNPlugin.java
+++ b/src/main/java/org/opensearch/knn/plugin/KNNPlugin.java
@@ -69,6 +69,7 @@
 import org.opensearch.knn.training.VectorReader;
 import org.opensearch.plugins.ActionPlugin;
 import org.opensearch.plugins.EnginePlugin;
+import org.opensearch.plugins.ExtensiblePlugin;
 import org.opensearch.plugins.MapperPlugin;
 import org.opensearch.plugins.Plugin;
 import org.opensearch.plugins.ScriptPlugin;
@@ -126,7 +127,7 @@
  *   }
  *
  */
-public class KNNPlugin extends Plugin implements MapperPlugin, SearchPlugin, ActionPlugin, EnginePlugin, ScriptPlugin {
+public class KNNPlugin extends Plugin implements MapperPlugin, SearchPlugin, ActionPlugin, EnginePlugin, ScriptPlugin, ExtensiblePlugin {
 
     public static final String LEGACY_KNN_BASE_URI = "/_opendistro/_knn";
     public static final String KNN_BASE_URI = "/_plugins/_knn";