diff --git a/plugins/libcalendaring/libvcalendar.php b/plugins/libcalendaring/libvcalendar.php
index 0a33798a..5b78a77c 100644
--- a/plugins/libcalendaring/libvcalendar.php
+++ b/plugins/libcalendaring/libvcalendar.php
@@ -763,7 +763,7 @@ class libvcalendar implements Iterator
 
                 // skip dupes
                 if ($seen[$value.':'.$fbtype]++)
-                    continue;
+                    break;
 
                 foreach ($periods as $period) {
                     // Every period is formatted as [start]/[end]. The start is an