diff --git a/clock.py b/clock.py
index c3963aa..ab6dfbd 100644
--- a/clock.py
+++ b/clock.py
@@ -331,6 +331,7 @@ class MyClockWidget(FloatLayout):
         self.aqi = []
         self.paqi = []
         self.uvi = []
+        self.iaqi = []
 
         if response.status_code == 200:
             t = datetime.datetime.now().timestamp()