diff --git a/files/helpers/assetcache.py b/files/helpers/assetcache.py
index 150c2d0bb..0cf73c6b2 100644
--- a/files/helpers/assetcache.py
+++ b/files/helpers/assetcache.py
@@ -13,7 +13,7 @@ ASSET_URL = '/assets/'
 ASSET_CACHE = defaultdict(lambda: None)
 
 if HOLIDAY_EVENT:
-	ASSET_SUBDIRS.extend(['/event/css', '/event/js'])
+	ASSET_SUBDIRS.extend(['/event/css', '/event/css/themes', '/event/js'])
 
 def assetcache_build(asset_dir, subdirs):
 	for subdir in subdirs: