diff -r ff477f1f7765 -r d96464f42b84 dav/sync.c
--- a/dav/sync.c	Thu Oct 11 19:29:45 2018 +0200
+++ b/dav/sync.c	Thu Oct 11 19:36:16 2018 +0200
@@ -1783,6 +1783,7 @@
     }
     
     dav_set_content(res, in, (dav_read_func)myread, (dav_seek_func)file_seek);
+    dav_set_content_length(res, s.st_size);
     
     if(dir->tagconfig) {
         UcxList *tags = sync_get_file_tags(dir, local, NULL);
@@ -1791,7 +1792,7 @@
             dav_set_property_ns(res, DAV_NS, "tags", prop);
         }
     }
-    
+     
     int ret = -1;
     int created = 0;
     for(int i=0;i<=dir->max_retry;i++) {