diff --git a/src/modules/dis.c b/src/modules/dis.c
index cc750b09..fbcffc92 100644
--- a/src/modules/dis.c
+++ b/src/modules/dis.c
@@ -84,7 +84,8 @@ static bool disassemble(CodeObject* co) {
                 case OP_BEGIN_CLASS:
                 case OP_DELETE_GLOBAL:
                 case OP_STORE_CLASS_ATTR: {
-                    pk_sprintf(&ss, " (%n)", byte.arg);
+                    py_Name name = c11__getitem(py_Name, &co->names, byte.arg);
+                    pk_sprintf(&ss, " (%n)", name);
                     break;
                 }
                 case OP_LOAD_FAST:
diff --git a/src/public/py_mappingproxy.c b/src/public/py_mappingproxy.c
index ff747244..fd492469 100644
--- a/src/public/py_mappingproxy.c
+++ b/src/public/py_mappingproxy.c
@@ -53,10 +53,10 @@ static bool namedict_items(int argc, py_Ref argv) {
     NameDict* dict = PyObject__dict(object->_obj);
     py_newlist(py_retval());
     for(int i = 0; i < dict->capacity; i++) {
-        py_Ref slot = py_list_emplace(py_retval());
-        py_Ref p = py_newtuple(slot, 2);
         NameDict_KV* kv = &dict->items[i];
         if(kv->key == NULL) continue;
+        py_Ref slot = py_list_emplace(py_retval());
+        py_Ref p = py_newtuple(slot, 2);
         p[0] = *py_name2ref(kv->key);
         p[1] = kv->value;
     }