diff --git a/yuthon_issue/models/issue_approval.py b/yuthon_issue/models/issue_approval.py
index 5544661cc..bf5e45028 100644
--- a/yuthon_issue/models/issue_approval.py
+++ b/yuthon_issue/models/issue_approval.py
@@ -96,6 +96,8 @@ class IssueApproval(models.Model):
             if rec.issue_approval_ids:
                 for issue_library in rec.issue_approval_ids:
                     issue_library.issue_library_id.write({'issue_state': 'to_approval'})
+                    if not issue_library.issue_library_id.issue_approval_id:
+                        issue_library.issue_library_id.issue_approval_id = rec.id
                     if rec.code:
                         self.env['issue.library.approval.line'].create({
                             'issue_library_id': issue_library.issue_library_id.id,