diff --git a/src/main/scala/algoliasearch/ingestion/TransformationSearch.scala b/src/main/scala/algoliasearch/ingestion/TransformationSearch.scala
index 3a88e20e..7e3bc081 100644
--- a/src/main/scala/algoliasearch/ingestion/TransformationSearch.scala
+++ b/src/main/scala/algoliasearch/ingestion/TransformationSearch.scala
@@ -26,5 +26,5 @@ package algoliasearch.ingestion
 /** TransformationSearch
   */
 case class TransformationSearch(
-    transformationsIDs: Seq[String]
+    transformationIDs: Option[Seq[String]] = scala.None
 )