diff -ur prewikka-1.0.0rc1.orig/setup.py prewikka-1.0.0rc1/setup.py
--- prewikka-1.0.0rc1.orig/setup.py	2010-01-30 14:17:33.000000000 -0500
+++ prewikka-1.0.0rc1/setup.py	2010-01-30 14:19:15.000000000 -0500
@@ -189,7 +189,7 @@
         self.install_conf()
         self.init_siteconfig()
         install.run(self)
-        self.mkpath(self.prefix + "/share/prewikka/htdocs/generated_images")
+	self.mkpath((self.root or "") + self.prefix + "/share/prewikka/htdocs/generated_images")
 
         for dir in ("/",
                     "share/prewikka",