diff --git a/include/serial/serial_listener.h b/include/serial/serial_listener.h
index a5a9f02..cb6307a 100644
--- a/include/serial/serial_listener.h
+++ b/include/serial/serial_listener.h
@@ -472,7 +472,7 @@ public:
    * \see serial::DataCallback, SerialListener::setInfoHandler
    */
   void setDefaultHandler(DataCallback default_handler) {
-    this->default_handler = default_handler;
+    this->_default_handler = default_handler;
   }
 
   /*!