diff --git a/mit.txt b/mit.txt
new file mode 100644
index 00000000..65b7bc8b
--- /dev/null
+++ b/mit.txt
@@ -0,0 +1,22 @@
+This license applies to the pytz files distributed with fpdb's Windows installer
+
+Copyright (c) Stuart Bishop <stuart@stuartbishop.net>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/pyfpdb/fpdb.pyw b/pyfpdb/fpdb.pyw
index b875900f..acf79c14 100755
--- a/pyfpdb/fpdb.pyw
+++ b/pyfpdb/fpdb.pyw
@@ -1060,7 +1060,8 @@ If you need help click on Contact - Get Help on our website.
 Please note that default.conf is no longer needed nor used, all configuration now happens in HUD_config.xml.
 
 This program is free/libre open source software licensed partially under the AGPL3, and partially under GPL2 or later.
-You can find the full license texts in agpl-3.0.txt, gpl-2.0.txt and gpl-3.0.txt in the fpdb installation directory.""")
+The Windows installer package includes code licensed under the MIT license.
+You can find the full license texts in agpl-3.0.txt, gpl-2.0.txt, gpl-3.0.txt and mit.txt in the fpdb installation directory.""")
         self.add_and_display_tab(mh_tab, "Help")
 
     def tabGraphViewer(self, widget, data=None):