diff --git a/synapse/rest/client/account.py b/synapse/rest/client/account.py
index e5ee63133b..9041e29d6c 100644
--- a/synapse/rest/client/account.py
+++ b/synapse/rest/client/account.py
@@ -196,7 +196,7 @@ class PasswordRestServlet(RestServlet):
params, session_id = await self.auth_handler.validate_user_via_ui_auth(
requester,
request,
- body.dict(),
+ body.dict(exclude_unset=True),
"modify your account password",
)
except InteractiveAuthIncompleteError as e:
@@ -219,7 +219,7 @@ class PasswordRestServlet(RestServlet):
result, params, session_id = await self.auth_handler.check_ui_auth(
[[LoginType.EMAIL_IDENTITY]],
request,
- body.dict(),
+ body.dict(exclude_unset=True),
"modify your account password",
)
except InteractiveAuthIncompleteError as e:
@@ -316,7 +316,7 @@ class DeactivateAccountRestServlet(RestServlet):
await self.auth_handler.validate_user_via_ui_auth(
requester,
request,
- body.dict(),
+ body.dict(exclude_unset=True),
"deactivate your account",
)
result = await self._deactivate_account_handler.deactivate_account(
|