diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbbc873..7709f62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ The format is based on [Keep a Changelog].
 * `mix format` is now passed the `--stdin-filename` argument which is
   required in some cases. The version of Mix is autodetected and this
   option is only passed when it is supported ([#319]).
+* Beancount files are formatted without an error ([#309]).
 
 ## Internal
 * Improvements to formatter test framework, it is now possible to
@@ -37,6 +38,7 @@ The format is based on [Keep a Changelog].
 
 [#301]: https://github.com/radian-software/apheleia/pull/301
 [#306]: https://github.com/radian-software/apheleia/pull/306
+[#309]: https://github.com/radian-software/apheleia/issues/309
 [#312]: https://github.com/radian-software/apheleia/issues/312
 [#313]: https://github.com/radian-software/apheleia/pull/313
 [#316]: https://github.com/radian-software/apheleia/pull/316
diff --git a/apheleia-formatters.el b/apheleia-formatters.el
index ec3d83b..77e07ef 100644
--- a/apheleia-formatters.el
+++ b/apheleia-formatters.el
@@ -24,7 +24,7 @@
   '((astyle . ("astyle" (apheleia-formatters-locate-file
                          "--options" ".astylerc")))
     (asmfmt . ("asmfmt"))
-    (bean-format . ("bean-format"))
+    (bean-format . ("bean-format" input))
     (beautysh . ("beautysh"
                  (apheleia-formatters-indent
                   "--tab" "--indent-size" 'sh-basic-offset)