--- a/QTfrontend/game.cpp	Wed Jan 23 03:46:32 2019 +0100
+++ b/QTfrontend/game.cpp	Fri Jan 25 06:46:13 2019 +0100
@@ -467,6 +467,8 @@
         arguments << "--no-healthtag";
     if (config->Form->ui.pageOptions->CBTagOpacity->isChecked())
         arguments << "--translucent-tags";
+    if (!config->isHolidaySillinessEnabled())
+        arguments << "--no-holiday-silliness";
 
     return arguments;
 }