diff --git a/ActiveSync/SOGoMailObject+ActiveSync.m b/ActiveSync/SOGoMailObject+ActiveSync.m
index 9340b465a..4e65fb32f 100644
--- a/ActiveSync/SOGoMailObject+ActiveSync.m
+++ b/ActiveSync/SOGoMailObject+ActiveSync.m
@@ -782,7 +782,7 @@ struct GlobalObjectId {
                   iCalCalendar *calendar;
                   NSData *calendarData;
                   
-                  calendarData = [bodyPart fetchBLOB];
+                  calendarData = [bodyPart fetchBLOBWithPeek: YES];
                   calendar = nil;
 
                   NS_DURING