diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6cd7bf26..9786326f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Change log
 
-
+- [#523](https://github.com/mobilityhouse/ocpp/issues/523) The serialisation of soc to SoC should not occur in camel case if it is existing at the beginning of a field
 - [#510](https://github.com/mobilityhouse/ocpp/issues/510) v2.0.1 UnitOfMeasureType - Enums missing and update docstring to allow use for variableCharacteristics
 - [#508](https://github.com/mobilityhouse/ocpp/issues/508) Exception - OccurrenceConstraintViolationError doc string correction
 
diff --git a/ocpp/charge_point.py b/ocpp/charge_point.py
index 5e31f3fe7..c5f8cbdcc 100644
--- a/ocpp/charge_point.py
+++ b/ocpp/charge_point.py
@@ -52,7 +52,7 @@ def snake_to_camel_case(data):
     if isinstance(data, dict):
         camel_case_dict = {}
         for key, value in data.items():
-            key = key.replace("soc", "SoC")
+            key = key.replace("_soc", "SoC")
             components = key.split("_")
             key = components[0] + "".join(x[:1].upper() + x[1:] for x in components[1:])
             camel_case_dict[key] = snake_to_camel_case(value)