From 9b04e657db0afb4c2cb4026f7c7ff8989ec6fecd Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Mon, 2 Aug 2021 20:53:34 +1200
Subject: [PATCH] Fix import (#2108)

---
 esphome/components/pmsx003/sensor.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/esphome/components/pmsx003/sensor.py b/esphome/components/pmsx003/sensor.py
index fcded50c25..c3dd7d5a97 100644
--- a/esphome/components/pmsx003/sensor.py
+++ b/esphome/components/pmsx003/sensor.py
@@ -19,6 +19,7 @@ from esphome.const import (
     CONF_PM_10_0UM,
     CONF_TEMPERATURE,
     CONF_TYPE,
+    DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_HUMIDITY,
     DEVICE_CLASS_TEMPERATURE,
     ICON_CHEMICAL_WEAPON,