diff --git a/yuthon_issue/models/issue_library.py b/yuthon_issue/models/issue_library.py
index 70e86bd4a..40c1fe185 100644
--- a/yuthon_issue/models/issue_library.py
+++ b/yuthon_issue/models/issue_library.py
@@ -123,7 +123,7 @@ class IssueLibrary(models.Model):
             ])
             if issue_line_records:
                 issue_line_records.unlink()
-            workflow_id = self.env['workflow'].search([('res_model', '=', 'issue.approval'),
+            workflow_id = self.env['soong.workflow.record'].search([('res_model', '=', 'issue.approval'),
                                                        ('res_id', '=', self.issue_approval_id.id)], limit=1)
             if workflow_id:
                 workflow_id.sudo().unlink()