diff --git a/esphome/components/sensor/ppd42x.py b/esphome/components/sensor/ppd42x.py
index 47c91191b5..25afe2d702 100644
--- a/esphome/components/sensor/ppd42x.py
+++ b/esphome/components/sensor/ppd42x.py
@@ -66,13 +66,13 @@ def to_code(config):
         for pl_02_5_ in gpio_input_pin_expression(config[CONF_PIN_02_5]):
             yield
         conf = config[CONF_PM_2_5]
-        sensor.register_sensor(ppd.make_pl_02_5_sensor(conf[CONF_NAME], pl_02_5_.copy()), conf)
+        sensor.register_sensor(ppd.make_pl_02_5_sensor(conf[CONF_NAME], pl_02_5_, conf)
 
     if CONF_PM_10_0 in config:
         for pl_10_0_ in gpio_input_pin_expression(config[CONF_PIN_10_0]):
             yield
         conf = config[CONF_PM_10_0]
-        sensor.register_sensor(ppd.make_pl_10_0_sensor(conf[CONF_NAME], pl_10_0_.copy()), conf)
+        sensor.register_sensor(ppd.make_pl_10_0_sensor(conf[CONF_NAME], pl_10_0_, conf)
 
     setup_component(ppd, config)