diff --git a/hometemp.py b/hometemp.py
index 02dd1e6..04203d9 100644
--- a/hometemp.py
+++ b/hometemp.py
@@ -55,7 +55,8 @@ def get_sensor_data(used_pin):
                 # postgres expects timestamp ins ISO 8601 format
                 timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
                 return result.temperature, result.humidity, timestamp
-
+    
+    return None, None, None
 
 def _get__visualization_data():
     auth = config["db"]