diff --git a/homeassistant/components/netatmo/sensor.py b/homeassistant/components/netatmo/sensor.py
index ed75ddf2f7f..2dbbeb56c76 100644
--- a/homeassistant/components/netatmo/sensor.py
+++ b/homeassistant/components/netatmo/sensor.py
@@ -183,7 +183,7 @@ async def async_setup_entry(hass, entry, async_add_entities):
         await data_handler.register_data_class(data_class_name, data_class_name, None)
         data_class = data_handler.data.get(data_class_name)
 
-        if not (data_class and data_class.raw_data):
+        if data_class and data_class.raw_data:
             platform_not_ready = False
 
         async_add_entities(await find_entities(data_class_name), True)
@@ -228,7 +228,7 @@ async def async_setup_entry(hass, entry, async_add_entities):
             )
             data_class = data_handler.data.get(signal_name)
 
-            if not (data_class and data_class.raw_data):
+            if data_class and data_class.raw_data:
                 nonlocal platform_not_ready
                 platform_not_ready = False