diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp
index 52602a0256e..06369528e88 100644
--- a/src/corelib/tools/qeasingcurve.cpp
+++ b/src/corelib/tools/qeasingcurve.cpp
@@ -1159,7 +1159,7 @@ QEasingCurve::~QEasingCurve()
     equal; otherwise returns \c false.
     It will also compare the properties of the curves.
  */
-bool comparesEqual(const QEasingCurve &lhs, const QEasingCurve &rhs) noexcept
+bool comparesEqual(const QEasingCurve &lhs, const QEasingCurve &rhs)
 {
     bool res = lhs.d_ptr->func == rhs.d_ptr->func
             && lhs.d_ptr->type == rhs.d_ptr->type;
diff --git a/src/corelib/tools/qeasingcurve.h b/src/corelib/tools/qeasingcurve.h
index 61e9aa247d8..d85baa65412 100644
--- a/src/corelib/tools/qeasingcurve.h
+++ b/src/corelib/tools/qeasingcurve.h
@@ -85,9 +85,9 @@ private:
     friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QEasingCurve &);
 #endif
     friend Q_CORE_EXPORT bool
-    comparesEqual(const QEasingCurve &lhs, const QEasingCurve &rhs) noexcept;
+    comparesEqual(const QEasingCurve &lhs, const QEasingCurve &rhs);
 #if !QT_CORE_REMOVED_SINCE(6, 8)
-    Q_DECLARE_EQUALITY_COMPARABLE(QEasingCurve)
+    Q_DECLARE_EQUALITY_COMPARABLE_NON_NOEXCEPT(QEasingCurve)
 #endif
 };
 Q_DECLARE_SHARED(QEasingCurve)