diff --git a/yuthon_issue/models/issue_library.py b/yuthon_issue/models/issue_library.py
index 38718f46e..af1c75cd7 100644
--- a/yuthon_issue/models/issue_library.py
+++ b/yuthon_issue/models/issue_library.py
@@ -399,7 +399,7 @@ class IssueLibrary(models.Model):
         for dec in self:
             specifics_list = []
             for line in dec.issue_library_line_ids:
-                if line.issue_approval_decision_id:
+                if line.issue_approval_decision_id.specifics:
                     specifics_list.append(line.issue_approval_decision_id.specifics)
             dec.approval_decision_sequence = ';'.join(specifics_list) if specifics_list else ''