diff --git a/doc_resources/nodes/sequence_diagram.puml b/doc_resources/nodes/sequence_diagram.puml
index 136d01e..ff44ae6 100644
--- a/doc_resources/nodes/sequence_diagram.puml
+++ b/doc_resources/nodes/sequence_diagram.puml
@@ -10,7 +10,7 @@ sup -> sens : get_value()
 sens --> sup : value
 sup -> ble : advertise(data)
 ble --> sup
-alt CO2 level above 400 OR windows is open
+alt CO2 level above 400
     sup -> sup : sleep 2 minutes
 else else
     sup -> sup : sleep for [last sleep time + 2 minutes]