diff --git a/app/services/api/v1/issues/list_service.rb b/app/services/api/v1/issues/list_service.rb
index 5a3f97e98..b6ef11789 100644
--- a/app/services/api/v1/issues/list_service.rb
+++ b/app/services/api/v1/issues/list_service.rb
@@ -76,7 +76,7 @@ class Api::V1::Issues::ListService < ApplicationService
     end
 
     # keyword
-    issues = issues.ransack(id_eq: keyword).result.or(issues.ransack(subject_or_description_cont: keyword).result) if keyword.present?
+    issues = issues.ransack(id_or_project_issues_index_eq: keyword).result.or(issues.ransack(subject_or_description_cont: keyword).result) if keyword.present?
 
     @total_issues_count = issues.distinct.size
     @closed_issues_count = issues.closed.distinct.size