diff --git a/Mac/OSX/Dist/build b/Mac/OSX/Dist/build
index a3f37227453..c830eae53a2 100755
--- a/Mac/OSX/Dist/build
+++ b/Mac/OSX/Dist/build
@@ -48,6 +48,8 @@ else
 	mkdir -p $BUILDROOT
 fi
 rm -rf $DMGDIR
+mkdir $TMPDIR
+chgrp admin $TMPDIR
 mkdir -p $DMGDIR/root