diff --git a/apps/accounts/serializers/account/account.py b/apps/accounts/serializers/account/account.py
index 70d7fce4d..eaf2c8485 100644
--- a/apps/accounts/serializers/account/account.py
+++ b/apps/accounts/serializers/account/account.py
@@ -241,7 +241,8 @@ class AssetAccountBulkSerializer(
     AccountCreateUpdateSerializerMixin, AuthValidateMixin, serializers.ModelSerializer
 ):
     su_from_username = serializers.CharField(
-        max_length=128, required=False, write_only=True, allow_null=True, label=_("Su from")
+        max_length=128, required=False, write_only=True, allow_null=True, label=_("Su from"),
+        allow_blank=True,
     )
     assets = serializers.PrimaryKeyRelatedField(queryset=Asset.objects, many=True, label=_('Assets'))