diff --git a/slugbuilder/builder/install-buildpack b/slugbuilder/builder/install-buildpack
index 335af8101d..017e638ded 100755
--- a/slugbuilder/builder/install-buildpack
+++ b/slugbuilder/builder/install-buildpack
@@ -33,7 +33,7 @@ IFS='#' read url treeish <<< "${buildpack_url}"
 if [[ "${treeish}" == "" ]]; then
   git clone --recursive --depth=1 "${url}" "${buildpack_name}"
 else
-  git clone --recursive "${url}" "${buildpack_name}"
+  git clone --recursive --no-checkout "${url}" "${buildpack_name}"
   pushd ${buildpack_name} > /dev/null
   git checkout -q "${treeish}"
   rm -rf .git