diff --git a/setup.py b/setup.py
index eafeb60a4..c192df7aa 100755
--- a/setup.py
+++ b/setup.py
@@ -507,7 +507,7 @@ if do_py2app:
     args['cmdclass'] = { 'py2app' : BuildAPP }
 
 # FIXME: this should check for the actual command ('install' vs. 'bdist_nsis', 'py2app', ...), not installed libraries
-if py2exe is None and do_py2app is None:
+if py2exe is None and do_py2app is False:
     args['data_files'].append(('share/icons', ('picard-16.png', 'picard-32.png')))
     args['data_files'].append(('share/applications', ('picard.desktop',)))