diff --git a/models/issues/issue_search.go b/models/issues/issue_search.go
index 691ae1331f..a23098b4e6 100644
--- a/models/issues/issue_search.go
+++ b/models/issues/issue_search.go
@@ -74,7 +74,7 @@ func applySorts(sess *xorm.Session, sortType string, priorityRepoID int64) {
 	if strings.HasPrefix(sortType, "scope-") {
 		scope := strings.TrimPrefix(sortType, "scope-")
 		sess.Join("LEFT", "issue_label", "issue.id = issue_label.issue_id")
-		sess.Join("LEFT", "label", "label.id = issue_label.label_id and label.name LIKE ?", fmt.Sprintf("%s/%%", scope))
+		sess.Join("LEFT", "label", "label.id = issue_label.label_id and label.name LIKE ?", scope+"/%")
 		sess.Asc("label.exclusive_order").Desc("issue.id")
 		return // EARLY RETURN
 	}