diff --git a/platformio.ini b/platformio.ini
index 8708667..b071e99 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -8,6 +8,9 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
+[platformio]
+default_envs = nano
+
 [env:nano]
 platform = atmelavr
 board = nanoatmega328