diff --git a/src/nodeClass.js b/src/nodeClass.js
index 92536fd..ae85d83 100644
--- a/src/nodeClass.js
+++ b/src/nodeClass.js
@@ -41,7 +41,7 @@ class nodeClass {
           break;
         }
         default:
-          console.log("Unknown topic: " + msg.topic);
+          this.source.logger.warn(`Unknown topic: ${msg.topic}`);
       }
 
       if (done) {