diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index 7b23800965c..8ba9b0b313f 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -1167,7 +1167,7 @@ QLocale &QLocale::operator=(const QLocale &other) noexcept = default;
     Equality comparison.
 */
 
-bool QLocale::equals(const QLocale &other) const
+bool QLocale::equals(const QLocale &other) const noexcept
 {
     return d->m_data == other.d->m_data && d->m_numberOptions == other.d->m_numberOptions;
 }
diff --git a/src/corelib/text/qlocale.h b/src/corelib/text/qlocale.h
index 55b9ffbeda3..48b2aa41b61 100644
--- a/src/corelib/text/qlocale.h
+++ b/src/corelib/text/qlocale.h
@@ -1167,7 +1167,7 @@ public:
 
 private:
     QLocale(QLocalePrivate &dd);
-    bool equals(const QLocale &other) const;
+    bool equals(const QLocale &other) const noexcept;
     friend class QLocalePrivate;
     friend class QSystemLocale;
     friend class QCalendarBackend;