diff --git a/lib/mobilizon/mime.ex b/lib/mobilizon_web/mime.ex
similarity index 99%
rename from lib/mobilizon/mime.ex
rename to lib/mobilizon_web/mime.ex
index 12ea8f46f..49739915a 100644
--- a/lib/mobilizon/mime.ex
+++ b/lib/mobilizon_web/mime.ex
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 # Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/mime.ex
 
-defmodule Mobilizon.MIME do
+defmodule MobilizonWeb.MIME do
   @moduledoc """
   Returns the mime-type of a binary and optionally a normalized file-name.
   """
diff --git a/lib/mobilizon_web/upload.ex b/lib/mobilizon_web/upload.ex
index b245f74b6..71f16d6e7 100644
--- a/lib/mobilizon_web/upload.ex
+++ b/lib/mobilizon_web/upload.ex
@@ -36,6 +36,8 @@ defmodule MobilizonWeb.Upload do
 
   alias Mobilizon.Config
 
+  alias MobilizonWeb.MIME
+
   require Logger
 
   @type source ::
@@ -140,7 +142,7 @@ defmodule MobilizonWeb.Upload do
 
   defp prepare_upload(%Plug.Upload{} = file, opts) do
     with {:ok, size} <- check_file_size(file.path, opts.size_limit),
-         {:ok, content_type, name} <- Mobilizon.MIME.file_mime_type(file.path, file.filename) do
+         {:ok, content_type, name} <- MIME.file_mime_type(file.path, file.filename) do
       {:ok,
        %__MODULE__{
          id: UUID.generate(),