diff --git a/indy_node/server/validator_info_tool.py b/indy_node/server/validator_info_tool.py
index 52900b46a..dc297390a 100644
--- a/indy_node/server/validator_info_tool.py
+++ b/indy_node/server/validator_info_tool.py
@@ -16,7 +16,7 @@ def info(self):
         ts_str = "{}".format(time.strftime(
             "%A, %B %{0}d, %Y %{0}I:%M:%S %p %z".format('#' if os.name == 'nt' else '-'),
             time.localtime(info["timestamp"])))
-        info.update({"Update time": ts_str})
+        info.update({"Update_time": ts_str})
         if 'Node_info' in info:
             if 'Metrics' in info['Node_info']:
                 std_ledgers = [POOL_LEDGER_ID, DOMAIN_LEDGER_ID, CONFIG_LEDGER_ID]
diff --git a/indy_node/test/validator_info/test_validator_info.py b/indy_node/test/validator_info/test_validator_info.py
index fcf128715..51db58859 100644
--- a/indy_node/test/validator_info/test_validator_info.py
+++ b/indy_node/test/validator_info/test_validator_info.py
@@ -189,9 +189,9 @@ def test_validator_info_file_metrics_count_all_ledgers_field_valid(node):
 
 
 def test_validator_info_update_date_field_valid(info):
-    assert "Update time" in info
+    assert "Update_time" in info
     import time
     import datetime
-    from_str = time.mktime(datetime.datetime.strptime(info["Update time"],
+    from_str = time.mktime(datetime.datetime.strptime(info["Update_time"],
                                                       "%A, %B %d, %Y %I:%M:%S %p %z").timetuple())
     assert int(from_str) == info["timestamp"]