diff --git a/src/dict.c b/src/dict.c
index 06f3871..c2dc6a7 100644
--- a/src/dict.c
+++ b/src/dict.c
@@ -306,7 +306,10 @@
 	    orig->dv_copyID = copyID;
 	    orig->dv_copydict = copy;
 	}
-	copy->dv_type = alloc_type(top || deep ? &t_dict_any : orig->dv_type);
+	if (orig->dv_type == NULL || top || deep)
+	    copy->dv_type = NULL;
+	else
+	    copy->dv_type = alloc_type(orig->dv_type);
 
 	todo = (int)orig->dv_hashtab.ht_used;
 	for (hi = orig->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi)
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index f7a5006..6e53d27 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -745,6 +745,9 @@
 
   var ndd: dict<dict<number>> = {a: {x: 1, y: 2}}
   assert_equal({x: 1, y: 2, z: 'x'}, ndd->deepcopy()['a']->extend({z: 'x'}))
+
+  var ldn: list<dict<number>> = [{a: 0}]->deepcopy()
+  assert_equal([{a: 0}], ldn)
 enddef
 
 def Test_count()
diff --git a/src/version.c b/src/version.c
index b994584..84ab409 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4301,
+/**/
     4300,
 /**/
     4299,