diff --git a/modules/listmimetypes.pl b/modules/listmimetypes.pl
new file mode 100644
index 00000000..932580ae
--- /dev/null
+++ b/modules/listmimetypes.pl
@@ -0,0 +1,21 @@
+# Copyright (C) 2009  Alex Schroeder <alex@gnu.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+$Action{mimetypes} = \&DoListMimeTypes;
+
+sub DoListMimeTypes {
+  print GetHttpHeader('text/plain');
+  print join("\n", @UploadTypes), "\n";
+}