diff --git a/hwilib/commands.py b/hwilib/commands.py
index 4b66e24..002c3f1 100644
--- a/hwilib/commands.py
+++ b/hwilib/commands.py
@@ -142,7 +142,7 @@ def getkeypool(client, path, start, end, internal=False, keypool=False, account=
     desc = Descriptor(master_fpr, path_base.replace('m', ''), base_key, path_suffix, client.is_testnet, sh_wpkh, wpkh)
 
     this_import['desc'] = desc.serialize()
-    this_import['range'] = {'start': start, 'end': end}
+    this_import['range'] = [start, end]
     this_import['timestamp'] = 'now'
     this_import['internal'] = internal
     this_import['keypool'] = keypool