diff --git a/lib/controller.js b/lib/controller.js
index 7265154b..2987d1f3 100644
--- a/lib/controller.js
+++ b/lib/controller.js
@@ -283,12 +283,12 @@ class Controller {
             if (cid) {
                 logger.warn(
                     `No converter available for '${mappedModel.model}' with cid '${cid}', ` +
-                    `type '${message.type}' and message '${JSON.stringify(message)}'`
+                    `type '${message.type}' and data '${JSON.stringify(message.data)}'`
                 );
             } else if (cmdId) {
                 logger.warn(
                     `No converter available for '${mappedModel.model}' with cmd '${cmdId}' ` +
-                    `and message '${JSON.stringify(message)}'`
+                    `and data '${JSON.stringify(message.data)}'`
                 );
             }