diff --git a/Olive.Email.Imap/ImapService.cs b/Olive.Email.Imap/ImapService.cs
index cf45adf3..c8004b9d 100644
--- a/Olive.Email.Imap/ImapService.cs
+++ b/Olive.Email.Imap/ImapService.cs
@@ -88,7 +88,7 @@ public async Task MarkAsSeen(MimeMessage message)
 
                 var ids = await folder.SearchAsync(SearchQuery.HeaderContains("Message-Id", message.MessageId));
 
-                await ids.DoAsync((id, _) => folder.SetFlagsAsync(id, MessageFlags.Seen, silent: true));
+                await ids.DoAsync(async (id, _) => await folder.SetFlagsAsync(id, MessageFlags.Seen, silent: true));
             }
         }
     }