diff --git a/platformio/exception.py b/platformio/exception.py
index ef1d3bab..445174fc 100644
--- a/platformio/exception.py
+++ b/platformio/exception.py
@@ -57,6 +57,7 @@ class MissedUdevRules(InvalidUdevRules):
     MESSAGE = (
         "Warning! Please install `99-platformio-udev.rules`. \nMore details: "
         "https://docs.platformio.org/page/faq.html#platformio-udev-rules"
+        "On NixOS add the platformio package to services.udev.packages"
     )