diff --git a/patching/scripts/create-tarballs.sh b/patching/scripts/create-tarballs.sh
index f9bd3cb0..2e7a0e7d 100755
--- a/patching/scripts/create-tarballs.sh
+++ b/patching/scripts/create-tarballs.sh
@@ -9,13 +9,14 @@ do
     PKG=${PKG1%.patch}
     rm -rf tmp
     mkdir tmp
+    (
     cd tmp
     cabal unpack $PKG
     cd $PKG
     patch -p1 < ../../$f
     cabal sdist
     mv dist/$PKG.tar.gz ../../tarballs
-    cd ..
+    )
     rm -rf tmp
     )
 done