diff --git a/esphome/components/sensor/ppd42x.py b/esphome/components/sensor/ppd42x.py
index ec618f5a35..f7dfdb5ea7 100644
--- a/esphome/components/sensor/ppd42x.py
+++ b/esphome/components/sensor/ppd42x.py
@@ -53,16 +53,16 @@ PLATFORM_SCHEMA = cv.nameable(sensor.PLATFORM_SCHEMA.extend({
 def to_code(config):
     rhs = App.make_ppd42x(PPD42X_TYPES[config[CONF_TYPE]])
     ppd = Pvariable(config[CONF_ID], rhs)
-    if CONF_PM_2_5 in config:
-        conf_02_5 = config[CONF_PM_2_5]
-        for pm_02_5 in get_variable(conf_10_0[CONF_PIN]):
-            yield
-        sensor.register_sensor(ppd.make_pm_02_5_sensor(conf_02_5[CONF_NAME]), pm_02_5)
     if CONF_PM_10_0 in config:
         conf_10_0 = config[CONF_PM_10_0]
         for pm_10_0 in get_variable(conf_10_0[CONF_PIN]):
             yield
         sensor.register_sensor(ppd.make_pm_10_0_sensor(conf_10_0[CONF_NAME]), pm_10_0)
+    if CONF_PM_2_5 in config:
+        conf_02_5 = config[CONF_PM_2_5]
+        for pm_02_5 in get_variable(conf_02_5[CONF_PIN]):
+            yield
+        sensor.register_sensor(ppd.make_pm_02_5_sensor(conf_02_5[CONF_NAME]), pm_02_5)
     setup_component(ppd, config)