diff --git a/app/plugins/builtins/mail/plugin.py b/app/plugins/builtins/mail/plugin.py
index 4b8563e..5a80af2 100644
--- a/app/plugins/builtins/mail/plugin.py
+++ b/app/plugins/builtins/mail/plugin.py
@@ -31,7 +31,7 @@ class MailPlugin(BasePlugin):
 
     manifest = PluginManifest(
         name="mail",
-        version="1.0.0",
+        version="1.1.0",
         display_name="Mail",
         description=(
             "Email management: IMAP sync, SMTP send, threading, "
@@ -46,7 +46,7 @@ class MailPlugin(BasePlugin):
             ),
         ],
         events=[],
-        migrations=["0001_initial.sql"],
+        migrations=["0001_initial.sql", "0006_flag_type.sql"],
         permissions=["mail:read", "mail:send", "mail:config", "mail:share", "mail:write", "mail:delete"],
     )
 
diff --git a/app/plugins/builtins/mail/services.py b/app/plugins/builtins/mail/services.py
index 7f62175..b4a6b5a 100644
--- a/app/plugins/builtins/mail/services.py
+++ b/app/plugins/builtins/mail/services.py
@@ -1562,7 +1562,7 @@ def mail_to_response(
         "date": mail.received_at.isoformat() if mail.received_at else (mail.sent_at.isoformat() if mail.sent_at else None),
         "is_seen": mail.is_seen,
         "is_flagged": mail.is_flagged,
-        "flag_type": mail.flag_type,
+        "flag_type": getattr(mail, 'flag_type', None),
         "is_draft": mail.is_draft,
         "is_answered": mail.is_answered,
         "is_forwarded": mail.is_forwarded,