diff --git a/domain_admin/api/issue_certificate_api.py b/domain_admin/api/issue_certificate_api.py
index 9252927a2a..0ddb614ebb 100644
--- a/domain_admin/api/issue_certificate_api.py
+++ b/domain_admin/api/issue_certificate_api.py
@@ -199,7 +199,7 @@ def get_certificate_list():
     )
 
     if keyword:
-        query.where(IssueCertificateModel.domain_raw.contains(keyword))
+        query = query.where(IssueCertificateModel.domain_raw.contains(keyword))
 
     total = query.count()