diff --git a/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/synonyms/GetSynonymsSetResponse.scala b/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/synonyms/GetSynonymsSetResponse.scala
index 67e70802f..14498d8f3 100644
--- a/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/synonyms/GetSynonymsSetResponse.scala
+++ b/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/synonyms/GetSynonymsSetResponse.scala
@@ -1,3 +1,5 @@
 package com.sksamuel.elastic4s.requests.synonyms
 
-case class GetSynonymsSetResponse(count: Int, synonymsSet: Seq[SynonymRule])
+import com.fasterxml.jackson.annotation.JsonProperty
+
+case class GetSynonymsSetResponse(count: Int, @JsonProperty("synonyms_set") synonymsSet: Seq[SynonymRule])
diff --git a/elastic4s-tests/src/test/scala/com/sksamuel/elastic4s/requests/synonyms/SynonymsTest.scala b/elastic4s-tests/src/test/scala/com/sksamuel/elastic4s/requests/synonyms/SynonymsTest.scala
index a80404c56..490b97516 100644
--- a/elastic4s-tests/src/test/scala/com/sksamuel/elastic4s/requests/synonyms/SynonymsTest.scala
+++ b/elastic4s-tests/src/test/scala/com/sksamuel/elastic4s/requests/synonyms/SynonymsTest.scala
@@ -26,8 +26,8 @@ class SynonymsTest extends AnyFlatSpec with Matchers with ElasticDsl with Docker
     val resp = client.execute {
       getSynonymsSet("my-synonyms-set")
     }.await.result
-
     resp.count shouldBe 3
+    resp.synonymsSet.map(_.synonyms).toSet shouldBe Set("hello, hi", "bye, goodbye", "test => check")
   }
 
   it should "handle errors" in {