diff --git a/wxPython/distrib/make_installer.py b/wxPython/distrib/make_installer.py
index c5933c47cc..c8750b4e80 100644
--- a/wxPython/distrib/make_installer.py
+++ b/wxPython/distrib/make_installer.py
@@ -150,6 +150,8 @@ Type: files; Name: "{app}\wxPython\lib\*.pyc";
 Type: files; Name: "{app}\wxPython\lib\*.pyo";
 Type: files; Name: "{app}\wxPython\lib\editor\*.pyc";
 Type: files; Name: "{app}\wxPython\lib\editor\*.pyo";
+Type: files; Name: "{app}\wxPython\lib\mixins\*.pyc";
+Type: files; Name: "{app}\wxPython\lib\mixins\*.pyo";
 Type: files; Name: "{app}\wxPython\demo\*.pyc";
 Type: files; Name: "{app}\wxPython\demo\*.pyo";
 Type: files; Name: "{app}\wxPython\demo\data\showTips";