1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/sqldrivers/psql/qsql_psql.cpp b/src/plugins/sqldrivers/psql/qsql_psql.cpp
index 8fcd9a47af7..1607e1141fb 100644
--- a/src/plugins/sqldrivers/psql/qsql_psql.cpp
+++ b/src/plugins/sqldrivers/psql/qsql_psql.cpp
@@ -247,14 +247,14 @@ void QPSQLDriverPrivate::checkPendingNotifications() const
     }
 }
 
-class QPSQLResultPrivate : public QSqlResultPrivate
+class QPSQLResultPrivate final : public QSqlResultPrivate
 {
     Q_DECLARE_PUBLIC(QPSQLResult)
 public:
     Q_DECLARE_SQLDRIVER_PRIVATE(QPSQLDriver)
     using QSqlResultPrivate::QSqlResultPrivate;
 
-    QString fieldSerial(qsizetype i) const override { return u'$' + QString::number(i + 1); }
+    QString fieldSerial(qsizetype i) const override { return QString("$%1"_L1).arg(i + 1); }
     void deallocatePreparedStmt();
 
     std::queue<PGresult*> nextResultSets;