diff --git a/update_i42_domain.py b/update_i42_domain.py
index 728508fe9d29e0e5b63d00f50962a3489edd03da..9b92d63a35b80e5e394673641e55654fccfdf670 100755
--- a/update_i42_domain.py
+++ b/update_i42_domain.py
@@ -76,7 +76,8 @@ try:
 except NameError:
 	UPDATE_IP_VERSION = 0
 
-data_v6 = data_v4 = {"token" : MY_TOKEN, "prefix": MY_PREFIX}
+data_v4 = {"token" : MY_TOKEN, "prefix": MY_PREFIX}
+data_v6 = data_v4.copy()
 host = "https://updaterv%d.i42.hu:10053"
 server_v4 = host % 4
 server_v6 = host % 6