diff --git a/Mac/OSX/Dist/build b/Mac/OSX/Dist/build
index a3f3722..c830eae 100755
--- a/Mac/OSX/Dist/build
+++ b/Mac/OSX/Dist/build
@@ -48,6 +48,8 @@
 	mkdir -p $BUILDROOT
 fi
 rm -rf $DMGDIR
+mkdir $TMPDIR
+chgrp admin $TMPDIR
 mkdir -p $DMGDIR/root