diff --git a/pipenv/core.py b/pipenv/core.py
index 1f4f6702..74673337 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -2763,6 +2763,7 @@ def do_check(
     # Run the PEP 508 checker in the virtualenv.
     cmd = _cmd + [Path(pep508checker_path).as_posix()]
     c = run_command(cmd, is_verbose=project.s.is_verbose())
+    results = []
     if c.returncode is not None:
         try:
             results = simplejson.loads(c.stdout.strip())
diff --git a/pipenv/vendor/plette/lockfiles.py b/pipenv/vendor/plette/lockfiles.py
index 001b360c..ccd031ba 100644
--- a/pipenv/vendor/plette/lockfiles.py
+++ b/pipenv/vendor/plette/lockfiles.py
@@ -90,8 +90,8 @@ class Lockfile(DataView):
                 "requires": _copy_jsonsafe(pipfile._data.get("requires", {})),
                 "sources": _copy_jsonsafe(pipfile.sources._data),
             },
-            "default": {},
-            "develop": {},
+            "default": _copy_jsonsafe(pipfile._data.get("packages", {})),
+            "develop": _copy_jsonsafe(pipfile._data.get("dev-packages", {})),
         }
         return cls(data)