diff --git a/src/message_processor.py b/src/message_processor.py
index fbeb144..1662f62 100644
--- a/src/message_processor.py
+++ b/src/message_processor.py
@@ -142,7 +142,7 @@ def process_high_temp(box_name, context, local_context, payload):
     return True
 
 def process_window(box_name, context, local_context, sub_key, payload):
-    local_context['window_state'][sub_key] = 'closed' if (payload.lower() in ('false', 'close', 'closed')) else 'open'
+    local_context['window_state'][sub_key] = CONVERTERS["window_contact_input"][box["windows"][sub_key]["converter"]](payload)
     _calculate_output_temperature(local_context)
     return True