diff --git a/src/Xiaomi_Scale.py b/src/Xiaomi_Scale.py
index 55d12a7..5ff8489 100644
--- a/src/Xiaomi_Scale.py
+++ b/src/Xiaomi_Scale.py
@@ -36,7 +36,7 @@ MQTT_HOST = os.getenv('MQTT_HOST', '127.0.0.1')
 MQTT_PORT = int(os.getenv('MQTT_PORT', 1883))
 MQTT_TIMEOUT = int(os.getenv('MQTT_TIMEOUT', 60))
 MQTT_PREFIX = os.getenv('MQTT_PREFIX', 'miscale')
-TIME_INTERVAL = os.getenv('TIME_INTERVAL, '30')
+TIME_INTERVAL = int(os.getenv('TIME_INTERVAL, '30'))
 OLD_MEASURE = ''
 
 # User Variables...