diff --git a/device_config/enodeb_configuration.py b/device_config/enodeb_configuration.py
index 5d28d50..6e0b951 100644
--- a/device_config/enodeb_configuration.py
+++ b/device_config/enodeb_configuration.py
@@ -158,4 +158,4 @@
         tr_param = trparam_model.get_parameter(param_name)
         if tr_param is None:
             logger.warning('Parameter <%s> not defined in model', param_name)
-            raise ConfigurationError("Parameter not defined in model.")
+            raise ConfigurationError("Parameter %s not defined in model." % param_name)