diff --git a/examples/protocols/modbus/serial/mb_slave/main/slave.c b/examples/protocols/modbus/serial/mb_slave/main/slave.c
index 166008a8de..0a78252f89 100644
--- a/examples/protocols/modbus/serial/mb_slave/main/slave.c
+++ b/examples/protocols/modbus/serial/mb_slave/main/slave.c
@@ -99,7 +99,7 @@ void app_main(void)
 
     ESP_ERROR_CHECK(mbc_slave_init(MB_PORT_SERIAL_SLAVE, &mbc_slave_handler)); // Initialization of Modbus controller
 
-    // Setup communication parameters and start stack
+    // Setup communication mode and start stack
 #if CONFIG_MB_COMM_MODE_ASCII
     comm_info.mode = MB_MODE_ASCII;
 #elif CONFIG_MB_COMM_MODE_RTU