diff --git a/CHANGELOG.md b/CHANGELOG.md
index c185b85..8c62afd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-<!--## [Unreleased]-->
+## [Unreleased]
+
+- Fix `raw_input` not actually being set as the request's body in
+  `Atex.XRPC.post/3` when providing a struct as input.
 
 ## [0.9.1] - 2026-04-17
 
diff --git a/lib/atex/xrpc.ex b/lib/atex/xrpc.ex
index 26b5d66..4022751 100644
--- a/lib/atex/xrpc.ex
+++ b/lib/atex/xrpc.ex
@@ -169,9 +169,7 @@ defmodule Atex.XRPC do
 
   def post(client, %{__struct__: module} = procedure, opts) do
     has_raw_input? =
-      if raw_input = procedure.raw_input do
-        opts = Keyword.put(opts, :body, raw_input)
-
+      if procedure.raw_input do
         if Code.ensure_loaded?(module) and function_exported?(module, :content_type, 0) do
           headers = Keyword.get(opts, :headers, [])
 
@@ -193,7 +191,9 @@ defmodule Atex.XRPC do
 
     opts =
       if has_raw_input? do
-        put_params(opts, procedure)
+        opts
+        |> put_params(procedure)
+        |> Keyword.put(:body, procedure.raw_input)
       else
         opts
         |> put_params(procedure)