diff --git a/app/models/validations/setup_validations.rb b/app/models/validations/setup_validations.rb
index fe0ee06ec..43a3a509c 100644
--- a/app/models/validations/setup_validations.rb
+++ b/app/models/validations/setup_validations.rb
@@ -5,7 +5,7 @@ module Validations::SetupValidations
   def validate_startdate_setup(record)
     return unless record.startdate && date_valid?("startdate", record)
 
-    if !FeatureToggle.startdate_collection_window_validation_enabled? && !record.startdate.between?(active_collection_start_date, current_collection_end_date)
+    if FeatureToggle.startdate_collection_window_validation_enabled? && !record.startdate.between?(active_collection_start_date, current_collection_end_date)
       record.errors.add :startdate, validation_error_message
     end
   end