diff --git a/setup.sh b/setup.sh
index 50cc4eea..c63fc9cd 100755
--- a/setup.sh
+++ b/setup.sh
@@ -26,6 +26,7 @@ else
   autoreconf --install
   ./configure --prefix=/opt/junk
   make check
+  [ -d tmp ] && mv tmp tmp-
   mkdir tmp
   make DESTDIR=./tmp install
   make distcheck