diff --git a/plugins/nextcloud-rule-exclusions-before.conf b/plugins/nextcloud-rule-exclusions-before.conf
index d850914..d04f398 100644
--- a/plugins/nextcloud-rule-exclusions-before.conf
+++ b/plugins/nextcloud-rule-exclusions-before.conf
@@ -574,7 +574,7 @@ SecRule REQUEST_METHOD "@streq PROPFIND" \
         ctl:ruleRemoveById=921110"
 
 # Syncing calendars
-SecRule REQUEST_FILENAME "@rx /remote\.php/dav/calendars/[^/]+/[^/]+/[^/]+\.ics$" \
+SecRule REQUEST_FILENAME "@rx /remote\.php/dav/calendars/(?:[^/]+/){2}[^/]+\.ics$" \
     "id:9508333,\
     phase:3,\
     pass,\