diff --git a/lib/spack/spack/directory_layout.py b/lib/spack/spack/directory_layout.py
index e275031387c..242eb1afa04 100644
--- a/lib/spack/spack/directory_layout.py
+++ b/lib/spack/spack/directory_layout.py
@@ -33,7 +33,6 @@
 
 import llnl.util.tty as tty
 from llnl.util.filesystem import join_path, mkdirp
-from llnl.util.link_tree import *
 
 from spack.spec import Spec
 from spack.error import SpackError