1 files changed, 2 insertions, 2 deletions
diff --git a/bin/spack b/bin/spack
index 5c042edd2d..baf08d1481 100755
--- a/bin/spack
+++ b/bin/spack
@@ -113,8 +113,8 @@ def main():
 
     spack.spack_working_dir = working_dir
     if args.mock:
-        from spack.packages import PackageDB
-        spack.db = PackageDB(spack.mock_packages_path)
+        from spack.packages import PackageFinder
+        spack.db.swap(PackageFinder(spack.mock_packages_path))
 
     # If the user asked for it, don't check ssl certs.
     if args.insecure: