diff --git a/zio-http/shared/src/main/scala/zio/http/endpoint/internal/EndpointClient.scala b/zio-http/shared/src/main/scala/zio/http/endpoint/internal/EndpointClient.scala
index e728d90b4d..9f30b2b7fb 100644
--- a/zio-http/shared/src/main/scala/zio/http/endpoint/internal/EndpointClient.scala
+++ b/zio-http/shared/src/main/scala/zio/http/endpoint/internal/EndpointClient.scala
@@ -26,7 +26,6 @@ import zio.http.endpoint._
 private[endpoint] final case class EndpointClient[P, I, E, O, M <: EndpointMiddleware](
   endpointRoot: URL,
   endpoint: Endpoint[P, I, E, O, M],
-  codecMapping: Map[Int, Codec[Response, Throwable, E]]
 ) {
   def execute(client: Client, invocation: Invocation[P, I, E, O, M])(
     mi: invocation.middleware.In,