diff --git a/smithy4play/src/main/scala/de/innfactory/smithy4play/client/SmithyPlayClientEndpoint.scala b/smithy4play/src/main/scala/de/innfactory/smithy4play/client/SmithyPlayClientEndpoint.scala
index 74c1d947..0f96e64f 100644
--- a/smithy4play/src/main/scala/de/innfactory/smithy4play/client/SmithyPlayClientEndpoint.scala
+++ b/smithy4play/src/main/scala/de/innfactory/smithy4play/client/SmithyPlayClientEndpoint.scala
@@ -81,7 +81,7 @@ private[smithy4play] class SmithyPlayClientEndpoint[Op[_, _, _, _, _], I, E, O,
         .map(o => HttpResponse(response.statusCode, headers, o))
         .leftMap {
           case error: PayloadError  =>
-            SmithyPlayClientEndpointErrorResponse(error.expected.getBytes(), response.statusCode)
+            SmithyPlayClientEndpointErrorResponse(error.toString().getBytes(), response.statusCode)
           case error: MetadataError =>
             SmithyPlayClientEndpointErrorResponse(error.getMessage().getBytes(), response.statusCode)
         }