diff --git a/components/base_nodemcu/user_main.c b/components/base_nodemcu/user_main.c
index 56476d3e..f5bd6df8 100644
--- a/components/base_nodemcu/user_main.c
+++ b/components/base_nodemcu/user_main.c
@@ -165,6 +165,7 @@ void app_main (void)
 #endif
 
   console_init (&cfg, input_task);
+  setvbuf(stdout, NULL, _IONBF, 0);
 
   nodemcu_init ();