diff --git a/src/pydase/data_service/state_manager.py b/src/pydase/data_service/state_manager.py
index e10d0c8..4e81612 100644
--- a/src/pydase/data_service/state_manager.py
+++ b/src/pydase/data_service/state_manager.py
@@ -68,7 +68,11 @@ class StateManager:
             self.filename = filename
 
         self.service = service
-        self.cache = DataServiceCache(self.service)
+        self._data_service_cache = DataServiceCache(self.service)
+
+    @property
+    def cache(self) -> dict[str, Any]:
+        return self._data_service_cache.cache
 
     def save_state(self) -> None:
         """
@@ -93,7 +97,7 @@ class StateManager:
             logger.debug("Could not load the service state.")
             return
 
-        serialized_class = self.cache.cache
+        serialized_class = self.cache
         for path in generate_paths_from_DataService_dict(json_dict):
             value = get_nested_value_from_DataService_by_path_and_key(
                 json_dict, path=path
diff --git a/src/pydase/server/web_server.py b/src/pydase/server/web_server.py
index 856da44..ed62763 100644
--- a/src/pydase/server/web_server.py
+++ b/src/pydase/server/web_server.py
@@ -117,7 +117,7 @@ class WebAPI:
 
         @app.get("/service-properties")
         def service_properties() -> dict[str, Any]:
-            return self.state_manager.cache.cache
+            return self.state_manager.cache
 
         # exposing custom.css file provided by user
         if self.css is not None: