diff --git a/DataPoints.py b/DataPoints.py
index 6ce07b6..724e99e 100755
--- a/DataPoints.py
+++ b/DataPoints.py
@@ -30,8 +30,8 @@ class Price:
         measurement = data.cache
         current_time_utc = datetime.utcnow()
         timestamp = current_time_utc.isoformat()
-        total = measurement["total"]
-        tax = measurement["tax"]
+        total = measurement.get("total", 0)
+        tax = measurement.get("tax", 0)
         tags = {self.label: ""}
         fields = {
             "total": float(total),