diff --git a/vector-stores/spring-ai-elasticsearch-store/src/main/java/org/springframework/ai/vectorstore/ElasticsearchVectorStore.java b/vector-stores/spring-ai-elasticsearch-store/src/main/java/org/springframework/ai/vectorstore/ElasticsearchVectorStore.java
index 2e4cef70c72..1ab7c1714e7 100644
--- a/vector-stores/spring-ai-elasticsearch-store/src/main/java/org/springframework/ai/vectorstore/ElasticsearchVectorStore.java
+++ b/vector-stores/spring-ai-elasticsearch-store/src/main/java/org/springframework/ai/vectorstore/ElasticsearchVectorStore.java
@@ -112,7 +112,7 @@ public ElasticsearchVectorStore(ElasticsearchVectorStoreOptions options, RestCli
 		super(observationRegistry, customObservationConvention);
 
 		this.initializeSchema = initializeSchema;
-		Objects.requireNonNull(embeddingModel, "RestClient must not be null");
+		Objects.requireNonNull(restClient, "RestClient must not be null");
 		Objects.requireNonNull(embeddingModel, "EmbeddingModel must not be null");
 		String version = Version.VERSION == null ? "Unknown" : Version.VERSION.toString();
 		this.elasticsearchClient = new ElasticsearchClient(new RestClientTransport(restClient,