diff --git a/thingsboard_gateway/connectors/opcua/device.py b/thingsboard_gateway/connectors/opcua/device.py
index dfdb178f..ebcb44c4 100644
--- a/thingsboard_gateway/connectors/opcua/device.py
+++ b/thingsboard_gateway/connectors/opcua/device.py
@@ -58,8 +58,8 @@ def load_values(self):
                         self.values[section].append(
                             {'path': child.groups()[0], 'key': node_config['key'],
                              REPORT_STRATEGY_PARAMETER: node_config.get(REPORT_STRATEGY_PARAMETER)})
-                    elif re.search(r"\${([A-Za-z.:\\\d]+)}", node_config['value']):
-                        child = re.search(r"\${([A-Za-z.:\\\d]+)", node_config['value'])
+                    elif re.search(r"\${([A-Za-z.:\\\d\[\]]+)", node_config['value']):
+                        child = re.search(r"\${([A-Za-z.:\\\d\[\]]+)", node_config['value'])
                         self.values[section].append(
                             {'path': self.path + child.groups()[0].split('\\.'), 'key': node_config['key'],
                              REPORT_STRATEGY_PARAMETER: node_config.get(REPORT_STRATEGY_PARAMETER)})