diff --git a/PinballApi/Converters/NotRatedNullableDescriptiveConverter.cs b/PinballApi/Converters/NotRatedNullableDescriptiveConverter.cs
index e6deeda..60a167a 100644
--- a/PinballApi/Converters/NotRatedNullableDescriptiveConverter.cs
+++ b/PinballApi/Converters/NotRatedNullableDescriptiveConverter.cs
@@ -1,6 +1,7 @@
 using System.Text.Json.Serialization;
 using System;
 using System.Text.Json;
+using System.Globalization;
 
 namespace PinballApi.Converters
 {
@@ -29,7 +30,7 @@ public override bool CanConvert(Type objectType)
                 }
                 else
                 {
-                    return double.Parse(integerOrNullDescriptiveTerm);
+                    return double.Parse(integerOrNullDescriptiveTerm, CultureInfo.InvariantCulture);
                 }
             }
             else if (reader.TokenType == JsonTokenType.Number)