diff --git a/mainui b/mainui
index c8f22ee6..f6ed54a4 160000
--- a/mainui
+++ b/mainui
@@ -1 +1 @@
-Subproject commit c8f22ee638d6009db1998e72956ddae26fa39724
+Subproject commit f6ed54a4b35f5aa6477f739a7cad78b4e897a747
diff --git a/wscript b/wscript
index be1d8dc5..97700378 100644
--- a/wscript
+++ b/wscript
@@ -123,9 +123,8 @@ def configure(conf):
 		conf.env.DEST_OS != 'darwin'):
 		conf.env.LIBDIR = conf.env.BINDIR = '${PREFIX}/lib/xash3d'
 	else:
-		# prefix is ignored
-		conf.env.LIBDIR = conf.env.BINDIR = '/'
-	
+		conf.env.LIBDIR = conf.env.BINDIR = conf.env.PREFIX
+
 	conf.start_msg('Checking git hash')
 	git_version = get_git_version()
 	conf.end_msg(git_version)