diff --git a/server/src/main/java/org/elasticsearch/TransportVersions.java b/server/src/main/java/org/elasticsearch/TransportVersions.java
index 351a79fd9baa6..6267fb3b86ae4 100644
--- a/server/src/main/java/org/elasticsearch/TransportVersions.java
+++ b/server/src/main/java/org/elasticsearch/TransportVersions.java
@@ -136,6 +136,7 @@ static TransportVersion def(int id) {
     public static final TransportVersion ML_PACKAGE_LOADER_PLATFORM_ADDED = def(8_512_00_0);
     public static final TransportVersion PLUGIN_DESCRIPTOR_OPTIONAL_CLASSNAME = def(8_513_00_0);
     public static final TransportVersion UNIVERSAL_PROFILING_LICENSE_ADDED = def(8_514_00_0);
+    public static final TransportVersion ELSER_SERVICE_MODEL_VERSION_ADDED = def(8_515_00_0);
     /*
      * STOP! READ THIS FIRST! No, really,
      *        ____ _____ ___  ____  _        ____  _____    _    ____    _____ _   _ ___ ____    _____ ___ ____  ____ _____ _
diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elser/ElserMlNodeService.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elser/ElserMlNodeService.java
index d3b69a3d3fb55..907c76e02f53c 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elser/ElserMlNodeService.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elser/ElserMlNodeService.java
@@ -26,6 +26,7 @@
 
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import static org.elasticsearch.xpack.core.ml.inference.assignment.AllocationStatus.State.STARTED;
 import static org.elasticsearch.xpack.inference.services.MapParsingUtils.removeFromMapOrThrowIfNull;