diff --git a/Makefile b/Makefile
index 80163121..9b140cc0 100644
--- a/Makefile
+++ b/Makefile
@@ -165,10 +165,11 @@ app: distclean localbuild chmod
 appinstall:	app
 	mkdir -p dist/mnt
 	hdiutil attach -mountpoint dist/mnt dist/$(APPNAME)-$(VERSION).dmg
-	cat /usr/local/lib/python2.7/site-packages/modulegraph/find_modules.py
-	cat /usr/local/lib/python2.7/site-packages/py2app/recipes/sip.py
-	-man open
-	open -n dist/mnt/$(APPNAME).app
+#	cat /usr/local/lib/python2.7/site-packages/modulegraph/find_modules.py
+#	cat /usr/local/lib/python2.7/site-packages/py2app/recipes/sip.py
+	man -P cat open
+	open -n dist/mnt/$(APPNAME).app --args http://www.example.org
+	sleep 10
 	-hdiutil detach dist/mnt
 
 # Build RPM installer with cx_Freeze